/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.15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 02:43:20,101 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 02:43:20,164 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 02:43:20,167 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 02:43:20,168 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 02:43:20,183 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 02:43:20,183 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 02:43:20,184 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 02:43:20,184 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 02:43:20,184 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 02:43:20,185 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 02:43:20,185 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 02:43:20,185 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 02:43:20,185 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 02:43:20,186 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 02:43:20,186 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 02:43:20,186 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 02:43:20,186 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 02:43:20,187 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 02:43:20,187 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 02:43:20,187 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 02:43:20,192 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 02:43:20,192 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 02:43:20,193 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 02:43:20,193 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 02:43:20,193 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 02:43:20,193 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 02:43:20,194 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 02:43:20,194 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 02:43:20,194 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 02:43:20,194 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 02:43:20,195 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 02:43:20,195 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 02:43:20,195 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 02:43:20,195 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 02:43:20,195 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 02:43:20,196 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 02:43:20,196 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 02:43:20,196 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 02:43:20,196 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 02:43:20,197 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 02:43:20,201 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 02:43:20,201 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 02:43:20,201 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 02:43:20,201 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 02:43:20,201 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 02:43:20,201 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 02:43:20,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 02:43:20,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 02:43:20,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 02:43:20,435 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 02:43:20,435 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 02:43:20,437 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.15.cil.c [2023-12-22 02:43:21,675 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 02:43:21,862 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 02:43:21,862 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.15.cil.c [2023-12-22 02:43:21,880 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9371dd377/39793aa6149141b5b4dbcc97e44a005b/FLAGdf14b8958 [2023-12-22 02:43:21,893 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9371dd377/39793aa6149141b5b4dbcc97e44a005b [2023-12-22 02:43:21,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 02:43:21,896 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 02:43:21,896 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 02:43:21,896 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 02:43:21,901 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 02:43:21,901 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:43:21" (1/1) ... [2023-12-22 02:43:21,902 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e49e9f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:43:21, skipping insertion in model container [2023-12-22 02:43:21,902 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:43:21" (1/1) ... [2023-12-22 02:43:21,956 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 02:43:22,083 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.15.cil.c[911,924] [2023-12-22 02:43:22,168 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.15.cil.c[8416,8429] [2023-12-22 02:43:22,277 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 02:43:22,289 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 02:43:22,297 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.15.cil.c[911,924] [2023-12-22 02:43:22,306 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.15.cil.c[8416,8429] [2023-12-22 02:43:22,332 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 02:43:22,351 INFO L206 MainTranslator]: Completed translation [2023-12-22 02:43:22,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:43:22 WrapperNode [2023-12-22 02:43:22,351 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 02:43:22,352 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 02:43:22,352 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 02:43:22,352 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 02:43:22,357 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:43:22" (1/1) ... [2023-12-22 02:43:22,370 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:43:22" (1/1) ... [2023-12-22 02:43:22,404 INFO L138 Inliner]: procedures = 82, calls = 101, calls flagged for inlining = 49, calls inlined = 49, statements flattened = 1127 [2023-12-22 02:43:22,404 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 02:43:22,404 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 02:43:22,405 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 02:43:22,405 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 02:43:22,414 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:43:22" (1/1) ... [2023-12-22 02:43:22,414 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:43:22" (1/1) ... [2023-12-22 02:43:22,423 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:43:22" (1/1) ... [2023-12-22 02:43:22,454 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 02:43:22,454 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:43:22" (1/1) ... [2023-12-22 02:43:22,455 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:43:22" (1/1) ... [2023-12-22 02:43:22,466 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:43:22" (1/1) ... [2023-12-22 02:43:22,475 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:43:22" (1/1) ... [2023-12-22 02:43:22,479 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:43:22" (1/1) ... [2023-12-22 02:43:22,481 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:43:22" (1/1) ... [2023-12-22 02:43:22,486 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 02:43:22,487 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 02:43:22,487 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 02:43:22,487 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 02:43:22,488 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:43:22" (1/1) ... [2023-12-22 02:43:22,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 02:43:22,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 02:43:22,534 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 02:43:22,536 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 02:43:22,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 02:43:22,578 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-22 02:43:22,578 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-22 02:43:22,578 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2023-12-22 02:43:22,578 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2023-12-22 02:43:22,578 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2023-12-22 02:43:22,578 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2023-12-22 02:43:22,578 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2023-12-22 02:43:22,578 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2023-12-22 02:43:22,579 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2023-12-22 02:43:22,579 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2023-12-22 02:43:22,579 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2023-12-22 02:43:22,579 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2023-12-22 02:43:22,579 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2023-12-22 02:43:22,579 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2023-12-22 02:43:22,579 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2023-12-22 02:43:22,579 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2023-12-22 02:43:22,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 02:43:22,579 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2023-12-22 02:43:22,579 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2023-12-22 02:43:22,579 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2023-12-22 02:43:22,579 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2023-12-22 02:43:22,580 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2023-12-22 02:43:22,580 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2023-12-22 02:43:22,580 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2023-12-22 02:43:22,580 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2023-12-22 02:43:22,580 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2023-12-22 02:43:22,580 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2023-12-22 02:43:22,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 02:43:22,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 02:43:22,580 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2023-12-22 02:43:22,580 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2023-12-22 02:43:22,580 INFO L130 BoogieDeclarations]: Found specification of procedure error2 [2023-12-22 02:43:22,580 INFO L138 BoogieDeclarations]: Found implementation of procedure error2 [2023-12-22 02:43:22,718 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 02:43:22,720 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 02:43:23,538 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !(1bv32 == ~q_free~0); [2023-12-22 02:43:23,539 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 02:43:23,615 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 02:43:23,679 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 02:43:23,679 INFO L309 CfgBuilder]: Removed 20 assume(true) statements. [2023-12-22 02:43:23,679 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:43:23 BoogieIcfgContainer [2023-12-22 02:43:23,679 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 02:43:23,682 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 02:43:23,682 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 02:43:23,684 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 02:43:23,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:43:21" (1/3) ... [2023-12-22 02:43:23,685 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fbd7613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:43:23, skipping insertion in model container [2023-12-22 02:43:23,685 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:43:22" (2/3) ... [2023-12-22 02:43:23,685 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fbd7613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:43:23, skipping insertion in model container [2023-12-22 02:43:23,685 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:43:23" (3/3) ... [2023-12-22 02:43:23,687 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.15.cil.c [2023-12-22 02:43:23,700 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 02:43:23,700 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-22 02:43:23,752 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 02:43:23,756 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;@7f5909e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 02:43:23,756 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-22 02:43:23,763 INFO L276 IsEmpty]: Start isEmpty. Operand has 481 states, 418 states have (on average 1.7200956937799043) internal successors, (719), 426 states have internal predecessors, (719), 45 states have call successors, (45), 15 states have call predecessors, (45), 15 states have return successors, (45), 43 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-22 02:43:23,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-22 02:43:23,774 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:23,775 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 02:43:23,775 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:23,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:23,780 INFO L85 PathProgramCache]: Analyzing trace with hash -496887913, now seen corresponding path program 1 times [2023-12-22 02:43:23,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:23,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [546651793] [2023-12-22 02:43:23,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:23,792 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:43:23,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:23,819 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 02:43:23,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:43:23,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:23,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 02:43:23,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:24,112 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 02:43:24,112 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:24,113 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:24,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [546651793] [2023-12-22 02:43:24,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [546651793] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:24,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:24,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-22 02:43:24,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968395364] [2023-12-22 02:43:24,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:24,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:24,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:24,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:24,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:24,148 INFO L87 Difference]: Start difference. First operand has 481 states, 418 states have (on average 1.7200956937799043) internal successors, (719), 426 states have internal predecessors, (719), 45 states have call successors, (45), 15 states have call predecessors, (45), 15 states have return successors, (45), 43 states have call predecessors, (45), 45 states have call successors, (45) 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 02:43:25,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:25,207 INFO L93 Difference]: Finished difference Result 1043 states and 1747 transitions. [2023-12-22 02:43:25,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:43:25,210 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 02:43:25,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:25,221 INFO L225 Difference]: With dead ends: 1043 [2023-12-22 02:43:25,221 INFO L226 Difference]: Without dead ends: 583 [2023-12-22 02:43:25,226 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 02:43:25,229 INFO L413 NwaCegarLoop]: 402 mSDtfsCounter, 506 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 1311 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 1414 SdHoareTripleChecker+Invalid, 1377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:25,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 1414 Invalid, 1377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1311 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 02:43:25,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2023-12-22 02:43:25,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 576. [2023-12-22 02:43:25,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 494 states have (on average 1.5951417004048583) internal successors, (788), 501 states have internal predecessors, (788), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (59), 55 states have call predecessors, (59), 54 states have call successors, (59) [2023-12-22 02:43:25,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 905 transitions. [2023-12-22 02:43:25,294 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 905 transitions. Word has length 57 [2023-12-22 02:43:25,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:25,295 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 905 transitions. [2023-12-22 02:43:25,295 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 02:43:25,296 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 905 transitions. [2023-12-22 02:43:25,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-22 02:43:25,303 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:25,303 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 02:43:25,312 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-22 02:43:25,507 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 02:43:25,508 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:25,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:25,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1854086615, now seen corresponding path program 1 times [2023-12-22 02:43:25,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:25,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1534298054] [2023-12-22 02:43:25,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:25,510 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:43:25,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:25,521 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 02:43:25,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:43:25,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:25,616 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:43:25,618 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:25,653 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 02:43:25,654 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:25,654 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:25,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1534298054] [2023-12-22 02:43:25,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1534298054] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:25,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:25,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:43:25,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838649709] [2023-12-22 02:43:25,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:25,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:43:25,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:25,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:43:25,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:25,656 INFO L87 Difference]: Start difference. First operand 576 states and 905 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 02:43:25,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:25,766 INFO L93 Difference]: Finished difference Result 936 states and 1423 transitions. [2023-12-22 02:43:25,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:43:25,780 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 02:43:25,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:25,784 INFO L225 Difference]: With dead ends: 936 [2023-12-22 02:43:25,784 INFO L226 Difference]: Without dead ends: 748 [2023-12-22 02:43:25,785 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 02:43:25,786 INFO L413 NwaCegarLoop]: 726 mSDtfsCounter, 723 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:25,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [723 Valid, 837 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:25,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2023-12-22 02:43:25,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 742. [2023-12-22 02:43:25,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 624 states have (on average 1.5625) internal successors, (975), 633 states have internal predecessors, (975), 78 states have call successors, (78), 36 states have call predecessors, (78), 38 states have return successors, (82), 75 states have call predecessors, (82), 74 states have call successors, (82) [2023-12-22 02:43:25,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1135 transitions. [2023-12-22 02:43:25,829 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1135 transitions. Word has length 57 [2023-12-22 02:43:25,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:25,830 INFO L495 AbstractCegarLoop]: Abstraction has 742 states and 1135 transitions. [2023-12-22 02:43:25,830 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 02:43:25,830 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1135 transitions. [2023-12-22 02:43:25,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-22 02:43:25,832 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:25,833 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 02:43:25,839 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 (3)] Forceful destruction successful, exit code 0 [2023-12-22 02:43:26,036 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 02:43:26,037 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:26,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:26,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1330642772, now seen corresponding path program 1 times [2023-12-22 02:43:26,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:26,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [751953349] [2023-12-22 02:43:26,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:26,038 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:43:26,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:26,040 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 02:43:26,042 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 (4)] Waiting until timeout for monitored process [2023-12-22 02:43:26,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:26,134 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 02:43:26,158 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:26,187 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 02:43:26,187 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:26,188 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:26,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [751953349] [2023-12-22 02:43:26,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [751953349] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:26,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:26,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 02:43:26,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041378030] [2023-12-22 02:43:26,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:26,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 02:43:26,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:26,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 02:43:26,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:26,189 INFO L87 Difference]: Start difference. First operand 742 states and 1135 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 02:43:26,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:26,388 INFO L93 Difference]: Finished difference Result 1114 states and 1670 transitions. [2023-12-22 02:43:26,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:43:26,389 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 02:43:26,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:26,395 INFO L225 Difference]: With dead ends: 1114 [2023-12-22 02:43:26,395 INFO L226 Difference]: Without dead ends: 760 [2023-12-22 02:43:26,396 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 02:43:26,399 INFO L413 NwaCegarLoop]: 700 mSDtfsCounter, 6 mSDsluCounter, 2794 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 3494 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:26,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 3494 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:26,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2023-12-22 02:43:26,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 750. [2023-12-22 02:43:26,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 630 states have (on average 1.553968253968254) internal successors, (979), 639 states have internal predecessors, (979), 78 states have call successors, (78), 36 states have call predecessors, (78), 40 states have return successors, (84), 77 states have call predecessors, (84), 74 states have call successors, (84) [2023-12-22 02:43:26,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1141 transitions. [2023-12-22 02:43:26,442 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1141 transitions. Word has length 58 [2023-12-22 02:43:26,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:26,442 INFO L495 AbstractCegarLoop]: Abstraction has 750 states and 1141 transitions. [2023-12-22 02:43:26,442 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 02:43:26,442 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1141 transitions. [2023-12-22 02:43:26,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-22 02:43:26,444 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:26,444 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 02:43:26,460 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-22 02:43:26,647 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 02:43:26,648 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:26,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:26,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1403029330, now seen corresponding path program 1 times [2023-12-22 02:43:26,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:26,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [475917630] [2023-12-22 02:43:26,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:26,652 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:43:26,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:26,653 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 02:43:26,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:43:26,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:26,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:43:26,746 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:26,794 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 02:43:26,795 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:26,795 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:26,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [475917630] [2023-12-22 02:43:26,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [475917630] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:26,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:26,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:43:26,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893070882] [2023-12-22 02:43:26,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:26,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:43:26,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:26,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:43:26,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:26,796 INFO L87 Difference]: Start difference. First operand 750 states and 1141 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 02:43:26,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:26,895 INFO L93 Difference]: Finished difference Result 1444 states and 2113 transitions. [2023-12-22 02:43:26,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:43:26,895 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 02:43:26,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:26,899 INFO L225 Difference]: With dead ends: 1444 [2023-12-22 02:43:26,899 INFO L226 Difference]: Without dead ends: 1082 [2023-12-22 02:43:26,900 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 02:43:26,900 INFO L413 NwaCegarLoop]: 698 mSDtfsCounter, 712 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:26,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [712 Valid, 813 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:26,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2023-12-22 02:43:26,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 1078. [2023-12-22 02:43:26,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 884 states have (on average 1.502262443438914) internal successors, (1328), 897 states have internal predecessors, (1328), 118 states have call successors, (118), 64 states have call predecessors, (118), 74 states have return successors, (132), 119 states have call predecessors, (132), 114 states have call successors, (132) [2023-12-22 02:43:26,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1578 transitions. [2023-12-22 02:43:26,932 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1578 transitions. Word has length 58 [2023-12-22 02:43:26,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:26,933 INFO L495 AbstractCegarLoop]: Abstraction has 1078 states and 1578 transitions. [2023-12-22 02:43:26,933 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 02:43:26,933 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1578 transitions. [2023-12-22 02:43:26,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-22 02:43:26,934 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:26,934 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 02:43:26,954 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 02:43:27,138 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 02:43:27,138 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:27,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:27,139 INFO L85 PathProgramCache]: Analyzing trace with hash 351669788, now seen corresponding path program 1 times [2023-12-22 02:43:27,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:27,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [42738558] [2023-12-22 02:43:27,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:27,139 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:43:27,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:27,144 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 02:43:27,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:43:27,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:27,259 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 02:43:27,262 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:27,285 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 02:43:27,285 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:27,285 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:27,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [42738558] [2023-12-22 02:43:27,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [42738558] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:27,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:27,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 02:43:27,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152462899] [2023-12-22 02:43:27,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:27,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 02:43:27,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:27,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 02:43:27,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:27,287 INFO L87 Difference]: Start difference. First operand 1078 states and 1578 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 02:43:27,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:27,519 INFO L93 Difference]: Finished difference Result 1792 states and 2570 transitions. [2023-12-22 02:43:27,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:43:27,520 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 02:43:27,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:27,525 INFO L225 Difference]: With dead ends: 1792 [2023-12-22 02:43:27,525 INFO L226 Difference]: Without dead ends: 1102 [2023-12-22 02:43:27,527 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 02:43:27,527 INFO L413 NwaCegarLoop]: 699 mSDtfsCounter, 3 mSDsluCounter, 2790 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3489 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:27,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3489 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 02:43:27,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2023-12-22 02:43:27,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1094. [2023-12-22 02:43:27,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 896 states have (on average 1.4910714285714286) internal successors, (1336), 909 states have internal predecessors, (1336), 118 states have call successors, (118), 64 states have call predecessors, (118), 78 states have return successors, (136), 123 states have call predecessors, (136), 114 states have call successors, (136) [2023-12-22 02:43:27,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1590 transitions. [2023-12-22 02:43:27,578 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1590 transitions. Word has length 73 [2023-12-22 02:43:27,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:27,578 INFO L495 AbstractCegarLoop]: Abstraction has 1094 states and 1590 transitions. [2023-12-22 02:43:27,579 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 02:43:27,579 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1590 transitions. [2023-12-22 02:43:27,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-22 02:43:27,580 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:27,580 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 02:43:27,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-22 02:43:27,799 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 02:43:27,800 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:27,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:27,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1493697378, now seen corresponding path program 1 times [2023-12-22 02:43:27,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:27,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [676547089] [2023-12-22 02:43:27,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:27,801 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:43:27,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:27,802 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 02:43:27,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:43:27,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:27,921 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:43:27,930 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:28,016 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 02:43:28,016 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:28,016 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:28,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [676547089] [2023-12-22 02:43:28,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [676547089] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:28,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:28,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-22 02:43:28,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225576893] [2023-12-22 02:43:28,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:28,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:28,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:28,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:28,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:28,018 INFO L87 Difference]: Start difference. First operand 1094 states and 1590 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:43:29,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:29,020 INFO L93 Difference]: Finished difference Result 2628 states and 3710 transitions. [2023-12-22 02:43:29,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 02:43:29,021 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 73 [2023-12-22 02:43:29,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:29,029 INFO L225 Difference]: With dead ends: 2628 [2023-12-22 02:43:29,029 INFO L226 Difference]: Without dead ends: 1920 [2023-12-22 02:43:29,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 69 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 02:43:29,032 INFO L413 NwaCegarLoop]: 398 mSDtfsCounter, 476 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 1311 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 1398 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:29,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 1398 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1311 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 02:43:29,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1920 states. [2023-12-22 02:43:29,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1920 to 1876. [2023-12-22 02:43:29,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1876 states, 1496 states have (on average 1.4318181818181819) internal successors, (2142), 1541 states have internal predecessors, (2142), 204 states have call successors, (204), 120 states have call predecessors, (204), 174 states have return successors, (292), 219 states have call predecessors, (292), 200 states have call successors, (292) [2023-12-22 02:43:29,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1876 states to 1876 states and 2638 transitions. [2023-12-22 02:43:29,131 INFO L78 Accepts]: Start accepts. Automaton has 1876 states and 2638 transitions. Word has length 73 [2023-12-22 02:43:29,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:29,131 INFO L495 AbstractCegarLoop]: Abstraction has 1876 states and 2638 transitions. [2023-12-22 02:43:29,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-22 02:43:29,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1876 states and 2638 transitions. [2023-12-22 02:43:29,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-22 02:43:29,133 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:29,133 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 02:43:29,147 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 02:43:29,337 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 02:43:29,338 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:29,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:29,338 INFO L85 PathProgramCache]: Analyzing trace with hash 557286620, now seen corresponding path program 1 times [2023-12-22 02:43:29,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:29,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [392823355] [2023-12-22 02:43:29,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:29,339 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:43:29,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:29,340 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 02:43:29,341 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 (8)] Waiting until timeout for monitored process [2023-12-22 02:43:29,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:29,490 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:29,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:29,592 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 02:43:29,592 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:29,592 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:29,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [392823355] [2023-12-22 02:43:29,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [392823355] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:29,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:29,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:29,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134491057] [2023-12-22 02:43:29,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:29,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:43:29,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:29,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:43:29,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:43:29,594 INFO L87 Difference]: Start difference. First operand 1876 states and 2638 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 02:43:30,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:30,365 INFO L93 Difference]: Finished difference Result 4792 states and 6621 transitions. [2023-12-22 02:43:30,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:43:30,366 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 02:43:30,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:30,377 INFO L225 Difference]: With dead ends: 4792 [2023-12-22 02:43:30,377 INFO L226 Difference]: Without dead ends: 3320 [2023-12-22 02:43:30,380 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 02:43:30,381 INFO L413 NwaCegarLoop]: 360 mSDtfsCounter, 1045 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:30,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1077 Valid, 731 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 02:43:30,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3320 states. [2023-12-22 02:43:30,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3320 to 3316. [2023-12-22 02:43:30,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3316 states, 2580 states have (on average 1.3790697674418604) internal successors, (3558), 2673 states have internal predecessors, (3558), 384 states have call successors, (384), 232 states have call predecessors, (384), 350 states have return successors, (629), 419 states have call predecessors, (629), 380 states have call successors, (629) [2023-12-22 02:43:30,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3316 states to 3316 states and 4571 transitions. [2023-12-22 02:43:30,510 INFO L78 Accepts]: Start accepts. Automaton has 3316 states and 4571 transitions. Word has length 73 [2023-12-22 02:43:30,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:30,510 INFO L495 AbstractCegarLoop]: Abstraction has 3316 states and 4571 transitions. [2023-12-22 02:43:30,511 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 02:43:30,511 INFO L276 IsEmpty]: Start isEmpty. Operand 3316 states and 4571 transitions. [2023-12-22 02:43:30,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-22 02:43:30,516 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:30,516 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 02:43:30,523 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 02:43:30,720 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 02:43:30,721 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:30,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:30,722 INFO L85 PathProgramCache]: Analyzing trace with hash 823988226, now seen corresponding path program 1 times [2023-12-22 02:43:30,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:30,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [3095472] [2023-12-22 02:43:30,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:30,723 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:43:30,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:30,727 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 02:43:30,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:43:30,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:30,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:43:30,821 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:30,845 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 02:43:30,846 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:30,846 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:30,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [3095472] [2023-12-22 02:43:30,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [3095472] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:30,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:30,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:43:30,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082180131] [2023-12-22 02:43:30,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:30,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:43:30,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:30,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:43:30,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:30,850 INFO L87 Difference]: Start difference. First operand 3316 states and 4571 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 02:43:31,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:31,133 INFO L93 Difference]: Finished difference Result 8984 states and 12200 transitions. [2023-12-22 02:43:31,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:43:31,133 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 02:43:31,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:31,148 INFO L225 Difference]: With dead ends: 8984 [2023-12-22 02:43:31,148 INFO L226 Difference]: Without dead ends: 4740 [2023-12-22 02:43:31,155 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 02:43:31,156 INFO L413 NwaCegarLoop]: 803 mSDtfsCounter, 110 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 1497 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:31,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 1497 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:31,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4740 states. [2023-12-22 02:43:31,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4740 to 4740. [2023-12-22 02:43:31,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4740 states, 3660 states have (on average 1.3579234972677596) internal successors, (4970), 3793 states have internal predecessors, (4970), 548 states have call successors, (548), 344 states have call predecessors, (548), 530 states have return successors, (961), 611 states have call predecessors, (961), 544 states have call successors, (961) [2023-12-22 02:43:31,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4740 states to 4740 states and 6479 transitions. [2023-12-22 02:43:31,369 INFO L78 Accepts]: Start accepts. Automaton has 4740 states and 6479 transitions. Word has length 75 [2023-12-22 02:43:31,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:31,369 INFO L495 AbstractCegarLoop]: Abstraction has 4740 states and 6479 transitions. [2023-12-22 02:43:31,369 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 02:43:31,369 INFO L276 IsEmpty]: Start isEmpty. Operand 4740 states and 6479 transitions. [2023-12-22 02:43:31,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-22 02:43:31,381 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:31,381 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 02:43:31,387 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-22 02:43:31,585 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 02:43:31,585 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:31,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:31,586 INFO L85 PathProgramCache]: Analyzing trace with hash 683676842, now seen corresponding path program 1 times [2023-12-22 02:43:31,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:31,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1845808278] [2023-12-22 02:43:31,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:31,586 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:43:31,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:31,601 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 02:43:31,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:43:31,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:31,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 02:43:31,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:31,732 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 02:43:31,733 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:31,733 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:31,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1845808278] [2023-12-22 02:43:31,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1845808278] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:31,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:31,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 02:43:31,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925375601] [2023-12-22 02:43:31,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:31,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 02:43:31,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:31,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 02:43:31,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-22 02:43:31,734 INFO L87 Difference]: Start difference. First operand 4740 states and 6479 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 02:43:32,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:32,059 INFO L93 Difference]: Finished difference Result 9096 states and 12433 transitions. [2023-12-22 02:43:32,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 02:43:32,060 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 02:43:32,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:32,075 INFO L225 Difference]: With dead ends: 9096 [2023-12-22 02:43:32,075 INFO L226 Difference]: Without dead ends: 4780 [2023-12-22 02:43:32,084 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 02:43:32,085 INFO L413 NwaCegarLoop]: 701 mSDtfsCounter, 32 mSDsluCounter, 2795 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 3496 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:32,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 3496 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 02:43:32,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4780 states. [2023-12-22 02:43:32,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4780 to 4294. [2023-12-22 02:43:32,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4294 states, 3382 states have (on average 1.3477232406859847) internal successors, (4558), 3454 states have internal predecessors, (4558), 452 states have call successors, (452), 293 states have call predecessors, (452), 458 states have return successors, (818), 555 states have call predecessors, (818), 448 states have call successors, (818) [2023-12-22 02:43:32,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4294 states to 4294 states and 5828 transitions. [2023-12-22 02:43:32,263 INFO L78 Accepts]: Start accepts. Automaton has 4294 states and 5828 transitions. Word has length 138 [2023-12-22 02:43:32,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:32,264 INFO L495 AbstractCegarLoop]: Abstraction has 4294 states and 5828 transitions. [2023-12-22 02:43:32,264 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 02:43:32,264 INFO L276 IsEmpty]: Start isEmpty. Operand 4294 states and 5828 transitions. [2023-12-22 02:43:32,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-22 02:43:32,273 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:32,273 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 02:43:32,279 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 02:43:32,477 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 02:43:32,477 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:32,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:32,478 INFO L85 PathProgramCache]: Analyzing trace with hash -48293058, now seen corresponding path program 1 times [2023-12-22 02:43:32,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:32,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [102386885] [2023-12-22 02:43:32,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:32,478 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:43:32,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:32,479 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 02:43:32,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:43:32,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:32,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:43:32,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:32,606 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 02:43:32,606 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:32,606 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:32,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [102386885] [2023-12-22 02:43:32,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [102386885] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:32,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:32,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:43:32,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380697935] [2023-12-22 02:43:32,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:32,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:43:32,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:32,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:43:32,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:32,607 INFO L87 Difference]: Start difference. First operand 4294 states and 5828 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 02:43:32,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:32,762 INFO L93 Difference]: Finished difference Result 6601 states and 8891 transitions. [2023-12-22 02:43:32,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:43:32,762 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 02:43:32,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:32,770 INFO L225 Difference]: With dead ends: 6601 [2023-12-22 02:43:32,770 INFO L226 Difference]: Without dead ends: 2771 [2023-12-22 02:43:32,776 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 02:43:32,777 INFO L413 NwaCegarLoop]: 698 mSDtfsCounter, 138 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:32,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 1263 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:32,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2771 states. [2023-12-22 02:43:32,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2771 to 2771. [2023-12-22 02:43:32,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2201 states have (on average 1.3666515220354385) internal successors, (3008), 2247 states have internal predecessors, (3008), 276 states have call successors, (276), 181 states have call predecessors, (276), 292 states have return successors, (498), 343 states have call predecessors, (498), 272 states have call successors, (498) [2023-12-22 02:43:32,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 3782 transitions. [2023-12-22 02:43:32,916 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 3782 transitions. Word has length 139 [2023-12-22 02:43:32,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:32,917 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 3782 transitions. [2023-12-22 02:43:32,917 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 02:43:32,917 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 3782 transitions. [2023-12-22 02:43:32,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-22 02:43:32,923 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:32,923 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 02:43:32,935 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 02:43:33,128 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 02:43:33,128 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:33,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:33,129 INFO L85 PathProgramCache]: Analyzing trace with hash 53457376, now seen corresponding path program 1 times [2023-12-22 02:43:33,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:33,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1343639801] [2023-12-22 02:43:33,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:33,130 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:43:33,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:33,131 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 02:43:33,168 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 (12)] Waiting until timeout for monitored process [2023-12-22 02:43:33,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:33,236 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:43:33,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:33,341 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 02:43:33,341 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:33,341 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:33,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1343639801] [2023-12-22 02:43:33,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1343639801] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:33,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:33,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:43:33,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567515475] [2023-12-22 02:43:33,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:33,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:43:33,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:33,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:43:33,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:33,343 INFO L87 Difference]: Start difference. First operand 2771 states and 3782 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 02:43:33,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:33,531 INFO L93 Difference]: Finished difference Result 6471 states and 8843 transitions. [2023-12-22 02:43:33,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:43:33,531 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 02:43:33,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:33,545 INFO L225 Difference]: With dead ends: 6471 [2023-12-22 02:43:33,545 INFO L226 Difference]: Without dead ends: 4364 [2023-12-22 02:43:33,550 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 02:43:33,550 INFO L413 NwaCegarLoop]: 712 mSDtfsCounter, 64 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 1393 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:33,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 1393 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:33,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4364 states. [2023-12-22 02:43:33,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4364 to 4336. [2023-12-22 02:43:33,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4336 states, 3428 states have (on average 1.3553092182030337) internal successors, (4646), 3510 states have internal predecessors, (4646), 432 states have call successors, (432), 289 states have call predecessors, (432), 474 states have return successors, (807), 537 states have call predecessors, (807), 428 states have call successors, (807) [2023-12-22 02:43:33,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4336 states to 4336 states and 5885 transitions. [2023-12-22 02:43:33,766 INFO L78 Accepts]: Start accepts. Automaton has 4336 states and 5885 transitions. Word has length 141 [2023-12-22 02:43:33,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:33,766 INFO L495 AbstractCegarLoop]: Abstraction has 4336 states and 5885 transitions. [2023-12-22 02:43:33,767 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 02:43:33,767 INFO L276 IsEmpty]: Start isEmpty. Operand 4336 states and 5885 transitions. [2023-12-22 02:43:33,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-22 02:43:33,774 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:33,774 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 02:43:33,780 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-12-22 02:43:33,978 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 02:43:33,978 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:33,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:33,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1320849131, now seen corresponding path program 1 times [2023-12-22 02:43:33,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:33,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [647842304] [2023-12-22 02:43:33,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:33,980 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:43:33,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:33,981 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 02:43:33,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:43:34,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:34,092 INFO L262 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:43:34,095 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:34,130 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 02:43:34,130 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:34,130 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:34,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [647842304] [2023-12-22 02:43:34,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [647842304] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:34,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:34,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:43:34,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753841067] [2023-12-22 02:43:34,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:34,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:43:34,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:34,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:43:34,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:34,132 INFO L87 Difference]: Start difference. First operand 4336 states and 5885 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 02:43:34,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:34,436 INFO L93 Difference]: Finished difference Result 11252 states and 15626 transitions. [2023-12-22 02:43:34,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:43:34,437 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 02:43:34,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:34,456 INFO L225 Difference]: With dead ends: 11252 [2023-12-22 02:43:34,456 INFO L226 Difference]: Without dead ends: 7580 [2023-12-22 02:43:34,464 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 02:43:34,465 INFO L413 NwaCegarLoop]: 746 mSDtfsCounter, 94 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 1431 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:34,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 1431 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:34,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7580 states. [2023-12-22 02:43:34,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7580 to 7528. [2023-12-22 02:43:34,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7528 states, 5920 states have (on average 1.325) internal successors, (7844), 6052 states have internal predecessors, (7844), 768 states have call successors, (768), 523 states have call predecessors, (768), 838 states have return successors, (1605), 953 states have call predecessors, (1605), 764 states have call successors, (1605) [2023-12-22 02:43:34,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7528 states to 7528 states and 10217 transitions. [2023-12-22 02:43:34,745 INFO L78 Accepts]: Start accepts. Automaton has 7528 states and 10217 transitions. Word has length 142 [2023-12-22 02:43:34,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:34,745 INFO L495 AbstractCegarLoop]: Abstraction has 7528 states and 10217 transitions. [2023-12-22 02:43:34,745 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 02:43:34,745 INFO L276 IsEmpty]: Start isEmpty. Operand 7528 states and 10217 transitions. [2023-12-22 02:43:34,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-22 02:43:34,753 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:34,753 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 02:43:34,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-22 02:43:34,957 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 02:43:34,957 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:34,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:34,958 INFO L85 PathProgramCache]: Analyzing trace with hash 976373702, now seen corresponding path program 1 times [2023-12-22 02:43:34,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:34,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [807686597] [2023-12-22 02:43:34,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:34,958 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:43:34,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:34,960 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 02:43:34,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-22 02:43:35,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:35,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:43:35,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:35,183 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 02:43:35,183 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:35,183 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:35,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [807686597] [2023-12-22 02:43:35,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [807686597] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:35,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:35,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:43:35,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358083729] [2023-12-22 02:43:35,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:35,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:43:35,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:35,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:43:35,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:35,185 INFO L87 Difference]: Start difference. First operand 7528 states and 10217 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 02:43:35,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:35,762 INFO L93 Difference]: Finished difference Result 21140 states and 28874 transitions. [2023-12-22 02:43:35,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:43:35,763 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 02:43:35,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:35,814 INFO L225 Difference]: With dead ends: 21140 [2023-12-22 02:43:35,814 INFO L226 Difference]: Without dead ends: 14276 [2023-12-22 02:43:35,832 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 02:43:35,832 INFO L413 NwaCegarLoop]: 716 mSDtfsCounter, 68 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 1398 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:35,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 1398 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:35,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14276 states. [2023-12-22 02:43:36,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14276 to 14272. [2023-12-22 02:43:36,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14272 states, 11187 states have (on average 1.3058013765978367) internal successors, (14608), 11448 states have internal predecessors, (14608), 1476 states have call successors, (1476), 1009 states have call predecessors, (1476), 1607 states have return successors, (3079), 1815 states have call predecessors, (3079), 1472 states have call successors, (3079) [2023-12-22 02:43:36,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14272 states to 14272 states and 19163 transitions. [2023-12-22 02:43:36,539 INFO L78 Accepts]: Start accepts. Automaton has 14272 states and 19163 transitions. Word has length 143 [2023-12-22 02:43:36,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:36,539 INFO L495 AbstractCegarLoop]: Abstraction has 14272 states and 19163 transitions. [2023-12-22 02:43:36,539 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 02:43:36,539 INFO L276 IsEmpty]: Start isEmpty. Operand 14272 states and 19163 transitions. [2023-12-22 02:43:36,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-22 02:43:36,552 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:36,553 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 02:43:36,557 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 02:43:36,757 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 02:43:36,757 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:36,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:36,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1866274660, now seen corresponding path program 1 times [2023-12-22 02:43:36,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:36,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1463569289] [2023-12-22 02:43:36,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:36,759 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:43:36,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:36,760 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 02:43:36,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:43:36,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:36,863 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:36,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:36,883 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 02:43:36,883 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:36,883 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:36,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1463569289] [2023-12-22 02:43:36,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1463569289] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:36,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:36,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:36,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559234567] [2023-12-22 02:43:36,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:36,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:36,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:36,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:36,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:36,884 INFO L87 Difference]: Start difference. First operand 14272 states and 19163 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 02:43:38,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:38,834 INFO L93 Difference]: Finished difference Result 40919 states and 54911 transitions. [2023-12-22 02:43:38,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 02:43:38,835 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 02:43:38,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:38,943 INFO L225 Difference]: With dead ends: 40919 [2023-12-22 02:43:38,943 INFO L226 Difference]: Without dead ends: 27024 [2023-12-22 02:43:38,969 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 02:43:38,970 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 1076 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 998 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1114 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 1064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:38,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1114 Valid, 1023 Invalid, 1064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 998 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-22 02:43:38,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27024 states. [2023-12-22 02:43:40,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27024 to 26976. [2023-12-22 02:43:40,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26976 states, 20985 states have (on average 1.290969740290684) internal successors, (27091), 21469 states have internal predecessors, (27091), 2871 states have call successors, (2871), 1960 states have call predecessors, (2871), 3118 states have return successors, (5873), 3547 states have call predecessors, (5873), 2867 states have call successors, (5873) [2023-12-22 02:43:40,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26976 states to 26976 states and 35835 transitions. [2023-12-22 02:43:40,169 INFO L78 Accepts]: Start accepts. Automaton has 26976 states and 35835 transitions. Word has length 147 [2023-12-22 02:43:40,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:40,169 INFO L495 AbstractCegarLoop]: Abstraction has 26976 states and 35835 transitions. [2023-12-22 02:43:40,169 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 02:43:40,169 INFO L276 IsEmpty]: Start isEmpty. Operand 26976 states and 35835 transitions. [2023-12-22 02:43:40,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-22 02:43:40,191 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:40,191 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:43:40,208 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 (15)] Ended with exit code 0 [2023-12-22 02:43:40,395 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 02:43:40,396 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:40,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:40,396 INFO L85 PathProgramCache]: Analyzing trace with hash -850671070, now seen corresponding path program 1 times [2023-12-22 02:43:40,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:40,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1559293375] [2023-12-22 02:43:40,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:40,397 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:43:40,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:40,398 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 02:43:40,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:43:40,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:40,683 INFO L262 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:40,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:40,726 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 02:43:40,726 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:40,726 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:40,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1559293375] [2023-12-22 02:43:40,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1559293375] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:40,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:40,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:40,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281917210] [2023-12-22 02:43:40,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:40,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:43:40,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:40,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:43:40,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:43:40,728 INFO L87 Difference]: Start difference. First operand 26976 states and 35835 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 02:43:42,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:42,315 INFO L93 Difference]: Finished difference Result 42873 states and 57201 transitions. [2023-12-22 02:43:42,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:43:42,316 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 02:43:42,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:42,356 INFO L225 Difference]: With dead ends: 42873 [2023-12-22 02:43:42,356 INFO L226 Difference]: Without dead ends: 16313 [2023-12-22 02:43:42,384 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 02:43:42,384 INFO L413 NwaCegarLoop]: 363 mSDtfsCounter, 1008 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:42,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1038 Valid, 725 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 02:43:42,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16313 states. [2023-12-22 02:43:43,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16313 to 16313. [2023-12-22 02:43:43,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16313 states, 12898 states have (on average 1.296247480229493) internal successors, (16719), 13148 states have internal predecessors, (16719), 1647 states have call successors, (1647), 1064 states have call predecessors, (1647), 1766 states have return successors, (3253), 2101 states have call predecessors, (3253), 1643 states have call successors, (3253) [2023-12-22 02:43:43,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16313 states to 16313 states and 21619 transitions. [2023-12-22 02:43:43,156 INFO L78 Accepts]: Start accepts. Automaton has 16313 states and 21619 transitions. Word has length 164 [2023-12-22 02:43:43,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:43,157 INFO L495 AbstractCegarLoop]: Abstraction has 16313 states and 21619 transitions. [2023-12-22 02:43:43,157 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 02:43:43,157 INFO L276 IsEmpty]: Start isEmpty. Operand 16313 states and 21619 transitions. [2023-12-22 02:43:43,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-22 02:43:43,167 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:43,167 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:43:43,171 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 02:43:43,371 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 02:43:43,371 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:43,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:43,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1085119484, now seen corresponding path program 2 times [2023-12-22 02:43:43,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:43,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [924022995] [2023-12-22 02:43:43,372 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 02:43:43,372 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:43:43,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:43,389 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 02:43:43,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:43:43,481 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 02:43:43,481 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 02:43:43,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:43:43,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:43,493 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 02:43:43,494 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:43,494 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:43,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [924022995] [2023-12-22 02:43:43,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [924022995] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:43,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:43,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:43:43,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12927440] [2023-12-22 02:43:43,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:43,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:43:43,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:43,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:43:43,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:43,495 INFO L87 Difference]: Start difference. First operand 16313 states and 21619 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 02:43:45,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:45,106 INFO L93 Difference]: Finished difference Result 47415 states and 62715 transitions. [2023-12-22 02:43:45,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:43:45,106 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 02:43:45,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:45,181 INFO L225 Difference]: With dead ends: 47415 [2023-12-22 02:43:45,181 INFO L226 Difference]: Without dead ends: 31607 [2023-12-22 02:43:45,201 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 02:43:45,202 INFO L413 NwaCegarLoop]: 769 mSDtfsCounter, 729 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 896 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:45,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 896 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:45,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31607 states. [2023-12-22 02:43:46,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31607 to 31558. [2023-12-22 02:43:46,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31558 states, 24875 states have (on average 1.2857889447236182) internal successors, (31984), 25291 states have internal predecessors, (31984), 3249 states have call successors, (3249), 2106 states have call predecessors, (3249), 3432 states have return successors, (6334), 4161 states have call predecessors, (6334), 3245 states have call successors, (6334) [2023-12-22 02:43:46,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31558 states to 31558 states and 41567 transitions. [2023-12-22 02:43:46,678 INFO L78 Accepts]: Start accepts. Automaton has 31558 states and 41567 transitions. Word has length 164 [2023-12-22 02:43:46,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:46,678 INFO L495 AbstractCegarLoop]: Abstraction has 31558 states and 41567 transitions. [2023-12-22 02:43:46,678 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 02:43:46,679 INFO L276 IsEmpty]: Start isEmpty. Operand 31558 states and 41567 transitions. [2023-12-22 02:43:46,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-22 02:43:46,685 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:46,686 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, 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] [2023-12-22 02:43:46,690 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2023-12-22 02:43:46,888 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 02:43:46,889 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:46,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:46,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1762715638, now seen corresponding path program 1 times [2023-12-22 02:43:46,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:46,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1988027617] [2023-12-22 02:43:46,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:46,890 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 02:43:46,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:46,891 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 02:43:46,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:43:46,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:46,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:43:46,998 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:47,016 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 02:43:47,016 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:47,016 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:47,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1988027617] [2023-12-22 02:43:47,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1988027617] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:47,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:47,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:43:47,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903375927] [2023-12-22 02:43:47,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:47,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:43:47,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:47,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:43:47,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:47,018 INFO L87 Difference]: Start difference. First operand 31558 states and 41567 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 02:43:48,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:48,579 INFO L93 Difference]: Finished difference Result 62394 states and 82069 transitions. [2023-12-22 02:43:48,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:43:48,579 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 02:43:48,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:48,658 INFO L225 Difference]: With dead ends: 62394 [2023-12-22 02:43:48,658 INFO L226 Difference]: Without dead ends: 31295 [2023-12-22 02:43:48,706 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 02:43:48,707 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 103 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 1432 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:48,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 1432 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:48,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31295 states. [2023-12-22 02:43:50,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31295 to 31291. [2023-12-22 02:43:50,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31291 states, 24626 states have (on average 1.2640298871111832) internal successors, (31128), 25106 states have internal predecessors, (31128), 3240 states have call successors, (3240), 2097 states have call predecessors, (3240), 3423 states have return successors, (5552), 4088 states have call predecessors, (5552), 3236 states have call successors, (5552) [2023-12-22 02:43:50,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31291 states to 31291 states and 39920 transitions. [2023-12-22 02:43:50,222 INFO L78 Accepts]: Start accepts. Automaton has 31291 states and 39920 transitions. Word has length 164 [2023-12-22 02:43:50,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:50,222 INFO L495 AbstractCegarLoop]: Abstraction has 31291 states and 39920 transitions. [2023-12-22 02:43:50,223 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 02:43:50,223 INFO L276 IsEmpty]: Start isEmpty. Operand 31291 states and 39920 transitions. [2023-12-22 02:43:50,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-22 02:43:50,241 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:50,241 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 02:43:50,247 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-22 02:43:50,447 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 02:43:50,448 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:50,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:50,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1562697724, now seen corresponding path program 1 times [2023-12-22 02:43:50,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:50,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1361773555] [2023-12-22 02:43:50,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:50,449 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:43:50,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:50,450 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 02:43:50,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:43:50,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:50,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:43:50,564 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:50,606 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 02:43:50,606 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:50,607 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:50,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1361773555] [2023-12-22 02:43:50,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1361773555] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:50,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:50,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:43:50,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826376847] [2023-12-22 02:43:50,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:50,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:43:50,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:50,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:43:50,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:50,608 INFO L87 Difference]: Start difference. First operand 31291 states and 39920 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 02:43:51,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:51,027 INFO L93 Difference]: Finished difference Result 35812 states and 45652 transitions. [2023-12-22 02:43:51,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:43:51,027 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 02:43:51,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:51,030 INFO L225 Difference]: With dead ends: 35812 [2023-12-22 02:43:51,030 INFO L226 Difference]: Without dead ends: 375 [2023-12-22 02:43:51,068 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 02:43:51,069 INFO L413 NwaCegarLoop]: 720 mSDtfsCounter, 74 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1339 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:51,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1339 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:51,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2023-12-22 02:43:51,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2023-12-22 02:43:51,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 339 states have (on average 1.640117994100295) internal successors, (556), 341 states have internal predecessors, (556), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-22 02:43:51,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 612 transitions. [2023-12-22 02:43:51,079 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 612 transitions. Word has length 171 [2023-12-22 02:43:51,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:51,079 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 612 transitions. [2023-12-22 02:43:51,079 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 02:43:51,080 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 612 transitions. [2023-12-22 02:43:51,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:43:51,080 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:51,080 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:51,085 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 (19)] Ended with exit code 0 [2023-12-22 02:43:51,284 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 02:43:51,285 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:51,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:51,286 INFO L85 PathProgramCache]: Analyzing trace with hash -647349812, now seen corresponding path program 1 times [2023-12-22 02:43:51,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:51,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1060583177] [2023-12-22 02:43:51,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:51,286 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 02:43:51,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:51,288 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 02:43:51,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-22 02:43:51,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:51,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:43:51,441 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:51,456 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 02:43:51,456 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:51,456 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:51,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1060583177] [2023-12-22 02:43:51,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1060583177] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:51,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:51,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:43:51,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756589374] [2023-12-22 02:43:51,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:51,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:43:51,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:51,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:43:51,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:51,457 INFO L87 Difference]: Start difference. First operand 375 states and 612 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 02:43:51,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:51,519 INFO L93 Difference]: Finished difference Result 740 states and 1207 transitions. [2023-12-22 02:43:51,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:43:51,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 172 [2023-12-22 02:43:51,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:51,520 INFO L225 Difference]: With dead ends: 740 [2023-12-22 02:43:51,520 INFO L226 Difference]: Without dead ends: 375 [2023-12-22 02:43:51,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 170 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 02:43:51,521 INFO L413 NwaCegarLoop]: 563 mSDtfsCounter, 600 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:51,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [600 Valid, 563 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:43:51,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2023-12-22 02:43:51,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2023-12-22 02:43:51,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 339 states have (on average 1.6371681415929205) internal successors, (555), 341 states have internal predecessors, (555), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-22 02:43:51,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 611 transitions. [2023-12-22 02:43:51,595 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 611 transitions. Word has length 172 [2023-12-22 02:43:51,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:51,595 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 611 transitions. [2023-12-22 02:43:51,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 02:43:51,596 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 611 transitions. [2023-12-22 02:43:51,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:43:51,596 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:51,597 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:51,603 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2023-12-22 02:43:51,797 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 02:43:51,798 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:51,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:51,798 INFO L85 PathProgramCache]: Analyzing trace with hash -2051218998, now seen corresponding path program 1 times [2023-12-22 02:43:51,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:51,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1190211539] [2023-12-22 02:43:51,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:51,799 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:43:51,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:51,800 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 02:43:51,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:43:51,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:51,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:43:51,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:51,985 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 02:43:51,985 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:51,985 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:51,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1190211539] [2023-12-22 02:43:51,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1190211539] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:51,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:51,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:43:51,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819584303] [2023-12-22 02:43:51,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:51,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:43:51,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:51,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:43:51,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:43:51,987 INFO L87 Difference]: Start difference. First operand 375 states and 611 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 02:43:52,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:52,069 INFO L93 Difference]: Finished difference Result 732 states and 1190 transitions. [2023-12-22 02:43:52,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:43:52,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 172 [2023-12-22 02:43:52,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:52,071 INFO L225 Difference]: With dead ends: 732 [2023-12-22 02:43:52,071 INFO L226 Difference]: Without dead ends: 375 [2023-12-22 02:43:52,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 170 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 02:43:52,072 INFO L413 NwaCegarLoop]: 562 mSDtfsCounter, 591 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:52,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [591 Valid, 562 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:43:52,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2023-12-22 02:43:52,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2023-12-22 02:43:52,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 339 states have (on average 1.6342182890855457) internal successors, (554), 341 states have internal predecessors, (554), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-22 02:43:52,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 610 transitions. [2023-12-22 02:43:52,087 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 610 transitions. Word has length 172 [2023-12-22 02:43:52,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:52,087 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 610 transitions. [2023-12-22 02:43:52,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 02:43:52,088 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 610 transitions. [2023-12-22 02:43:52,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:43:52,088 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:52,089 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:52,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-22 02:43:52,294 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 02:43:52,295 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:52,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:52,295 INFO L85 PathProgramCache]: Analyzing trace with hash -646027320, now seen corresponding path program 1 times [2023-12-22 02:43:52,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:52,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019562405] [2023-12-22 02:43:52,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:52,296 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:43:52,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:52,297 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 02:43:52,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:43:52,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:52,450 INFO L262 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:52,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:52,527 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 02:43:52,527 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:52,527 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:52,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1019562405] [2023-12-22 02:43:52,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1019562405] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:52,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:52,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:52,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490867368] [2023-12-22 02:43:52,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:52,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:52,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:52,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:52,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:52,529 INFO L87 Difference]: Start difference. First operand 375 states and 610 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 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 02:43:53,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:53,259 INFO L93 Difference]: Finished difference Result 1138 states and 1869 transitions. [2023-12-22 02:43:53,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:43:53,259 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 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 172 [2023-12-22 02:43:53,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:53,261 INFO L225 Difference]: With dead ends: 1138 [2023-12-22 02:43:53,261 INFO L226 Difference]: Without dead ends: 783 [2023-12-22 02:43:53,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:43:53,262 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 1183 mSDsluCounter, 1132 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1204 SdHoareTripleChecker+Valid, 1580 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:53,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1204 Valid, 1580 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-22 02:43:53,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2023-12-22 02:43:53,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 750. [2023-12-22 02:43:53,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 685 states have (on average 1.6452554744525547) internal successors, (1127), 688 states have internal predecessors, (1127), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-22 02:43:53,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1228 transitions. [2023-12-22 02:43:53,291 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1228 transitions. Word has length 172 [2023-12-22 02:43:53,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:53,291 INFO L495 AbstractCegarLoop]: Abstraction has 750 states and 1228 transitions. [2023-12-22 02:43:53,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 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 02:43:53,291 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1228 transitions. [2023-12-22 02:43:53,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:43:53,292 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:53,292 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:53,297 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2023-12-22 02:43:53,497 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 02:43:53,498 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:53,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:53,499 INFO L85 PathProgramCache]: Analyzing trace with hash 359077956, now seen corresponding path program 1 times [2023-12-22 02:43:53,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:53,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1147262010] [2023-12-22 02:43:53,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:53,499 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:43:53,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:53,501 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 02:43:53,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:43:53,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:53,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:53,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:53,766 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 02:43:53,767 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:53,767 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:53,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1147262010] [2023-12-22 02:43:53,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1147262010] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:53,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:53,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:53,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012252493] [2023-12-22 02:43:53,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:53,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:53,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:53,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:53,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:53,768 INFO L87 Difference]: Start difference. First operand 750 states and 1228 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:43:54,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:54,239 INFO L93 Difference]: Finished difference Result 1480 states and 2429 transitions. [2023-12-22 02:43:54,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:43:54,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:43:54,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:54,243 INFO L225 Difference]: With dead ends: 1480 [2023-12-22 02:43:54,243 INFO L226 Difference]: Without dead ends: 750 [2023-12-22 02:43:54,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:43:54,246 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 830 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:54,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 986 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:43:54,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2023-12-22 02:43:54,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 750. [2023-12-22 02:43:54,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 685 states have (on average 1.635036496350365) internal successors, (1120), 688 states have internal predecessors, (1120), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-22 02:43:54,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1221 transitions. [2023-12-22 02:43:54,278 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1221 transitions. Word has length 172 [2023-12-22 02:43:54,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:54,278 INFO L495 AbstractCegarLoop]: Abstraction has 750 states and 1221 transitions. [2023-12-22 02:43:54,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:43:54,279 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1221 transitions. [2023-12-22 02:43:54,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:43:54,279 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:54,280 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:54,288 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 02:43:54,486 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 02:43:54,486 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:54,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:54,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1638426696, now seen corresponding path program 1 times [2023-12-22 02:43:54,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:54,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [726821489] [2023-12-22 02:43:54,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:54,488 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:43:54,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:54,489 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 02:43:54,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:43:54,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:54,647 INFO L262 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:54,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:54,727 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 02:43:54,727 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:54,727 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:54,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [726821489] [2023-12-22 02:43:54,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [726821489] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:54,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:54,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:54,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417727773] [2023-12-22 02:43:54,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:54,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:54,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:54,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:54,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:54,729 INFO L87 Difference]: Start difference. First operand 750 states and 1221 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:43:55,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:55,200 INFO L93 Difference]: Finished difference Result 1480 states and 2415 transitions. [2023-12-22 02:43:55,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:43:55,201 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:43:55,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:55,202 INFO L225 Difference]: With dead ends: 1480 [2023-12-22 02:43:55,202 INFO L226 Difference]: Without dead ends: 750 [2023-12-22 02:43:55,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:43:55,204 INFO L413 NwaCegarLoop]: 381 mSDtfsCounter, 824 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 845 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:55,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [845 Valid, 979 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:43:55,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2023-12-22 02:43:55,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 750. [2023-12-22 02:43:55,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 685 states have (on average 1.6248175182481752) internal successors, (1113), 688 states have internal predecessors, (1113), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-22 02:43:55,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1214 transitions. [2023-12-22 02:43:55,239 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1214 transitions. Word has length 172 [2023-12-22 02:43:55,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:55,240 INFO L495 AbstractCegarLoop]: Abstraction has 750 states and 1214 transitions. [2023-12-22 02:43:55,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:43:55,240 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1214 transitions. [2023-12-22 02:43:55,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:43:55,241 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:55,241 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:55,247 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2023-12-22 02:43:55,446 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 02:43:55,447 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:55,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:55,448 INFO L85 PathProgramCache]: Analyzing trace with hash -675608636, now seen corresponding path program 1 times [2023-12-22 02:43:55,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:55,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [446174731] [2023-12-22 02:43:55,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:55,448 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:43:55,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:55,449 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 02:43:55,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:43:55,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:55,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:55,609 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:55,677 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 02:43:55,678 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:55,678 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:55,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [446174731] [2023-12-22 02:43:55,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [446174731] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:55,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:55,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:55,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513066048] [2023-12-22 02:43:55,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:55,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:55,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:55,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:55,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:55,679 INFO L87 Difference]: Start difference. First operand 750 states and 1214 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:43:56,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:56,135 INFO L93 Difference]: Finished difference Result 1480 states and 2401 transitions. [2023-12-22 02:43:56,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:43:56,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:43:56,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:56,137 INFO L225 Difference]: With dead ends: 1480 [2023-12-22 02:43:56,137 INFO L226 Difference]: Without dead ends: 750 [2023-12-22 02:43:56,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:43:56,139 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 818 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:56,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [839 Valid, 972 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:43:56,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2023-12-22 02:43:56,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 750. [2023-12-22 02:43:56,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 685 states have (on average 1.6145985401459855) internal successors, (1106), 688 states have internal predecessors, (1106), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-22 02:43:56,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1207 transitions. [2023-12-22 02:43:56,177 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1207 transitions. Word has length 172 [2023-12-22 02:43:56,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:56,177 INFO L495 AbstractCegarLoop]: Abstraction has 750 states and 1207 transitions. [2023-12-22 02:43:56,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:43:56,177 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1207 transitions. [2023-12-22 02:43:56,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:43:56,178 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:56,178 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:56,186 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 02:43:56,384 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 02:43:56,384 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:56,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:56,385 INFO L85 PathProgramCache]: Analyzing trace with hash 358123720, now seen corresponding path program 1 times [2023-12-22 02:43:56,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:56,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1274447423] [2023-12-22 02:43:56,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:56,385 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:43:56,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:56,386 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 02:43:56,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-22 02:43:56,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:56,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:56,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:56,615 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 02:43:56,615 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:56,615 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:56,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1274447423] [2023-12-22 02:43:56,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1274447423] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:56,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:56,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:56,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648308833] [2023-12-22 02:43:56,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:56,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:56,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:56,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:56,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:56,617 INFO L87 Difference]: Start difference. First operand 750 states and 1207 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:43:57,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:57,064 INFO L93 Difference]: Finished difference Result 1480 states and 2387 transitions. [2023-12-22 02:43:57,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:43:57,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:43:57,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:57,074 INFO L225 Difference]: With dead ends: 1480 [2023-12-22 02:43:57,074 INFO L226 Difference]: Without dead ends: 750 [2023-12-22 02:43:57,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:43:57,075 INFO L413 NwaCegarLoop]: 375 mSDtfsCounter, 812 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 833 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:57,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [833 Valid, 965 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:43:57,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2023-12-22 02:43:57,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 750. [2023-12-22 02:43:57,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 685 states have (on average 1.6043795620437957) internal successors, (1099), 688 states have internal predecessors, (1099), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-22 02:43:57,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1200 transitions. [2023-12-22 02:43:57,101 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1200 transitions. Word has length 172 [2023-12-22 02:43:57,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:57,102 INFO L495 AbstractCegarLoop]: Abstraction has 750 states and 1200 transitions. [2023-12-22 02:43:57,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:43:57,102 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1200 transitions. [2023-12-22 02:43:57,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:43:57,102 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:57,102 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:57,109 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 02:43:57,309 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 02:43:57,310 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:57,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:57,310 INFO L85 PathProgramCache]: Analyzing trace with hash -965055226, now seen corresponding path program 1 times [2023-12-22 02:43:57,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:57,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [85516114] [2023-12-22 02:43:57,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:57,311 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:43:57,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:57,312 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 02:43:57,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:43:57,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:57,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:57,470 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:57,511 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 02:43:57,511 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:57,511 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:57,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [85516114] [2023-12-22 02:43:57,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [85516114] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:57,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:57,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:57,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485174921] [2023-12-22 02:43:57,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:57,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:57,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:57,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:57,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:57,513 INFO L87 Difference]: Start difference. First operand 750 states and 1200 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:43:57,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:57,958 INFO L93 Difference]: Finished difference Result 1480 states and 2373 transitions. [2023-12-22 02:43:57,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:43:57,958 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:43:57,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:57,960 INFO L225 Difference]: With dead ends: 1480 [2023-12-22 02:43:57,960 INFO L226 Difference]: Without dead ends: 750 [2023-12-22 02:43:57,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:43:57,961 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 805 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:57,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [826 Valid, 958 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:43:57,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2023-12-22 02:43:57,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 750. [2023-12-22 02:43:57,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 685 states have (on average 1.5941605839416058) internal successors, (1092), 688 states have internal predecessors, (1092), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-22 02:43:57,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1193 transitions. [2023-12-22 02:43:57,988 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1193 transitions. Word has length 172 [2023-12-22 02:43:57,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:57,988 INFO L495 AbstractCegarLoop]: Abstraction has 750 states and 1193 transitions. [2023-12-22 02:43:57,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:43:57,988 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1193 transitions. [2023-12-22 02:43:57,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:43:57,989 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:57,989 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:57,998 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 02:43:58,199 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 02:43:58,200 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:58,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:58,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1998574974, now seen corresponding path program 1 times [2023-12-22 02:43:58,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:58,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1710814450] [2023-12-22 02:43:58,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:58,201 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:43:58,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:58,203 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 02:43:58,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:43:58,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:58,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:58,360 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:58,420 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 02:43:58,420 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:58,420 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:58,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1710814450] [2023-12-22 02:43:58,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1710814450] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:58,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:58,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:58,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970098474] [2023-12-22 02:43:58,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:58,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:58,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:58,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:58,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:58,423 INFO L87 Difference]: Start difference. First operand 750 states and 1193 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:43:58,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:58,874 INFO L93 Difference]: Finished difference Result 1480 states and 2359 transitions. [2023-12-22 02:43:58,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:43:58,875 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:43:58,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:58,876 INFO L225 Difference]: With dead ends: 1480 [2023-12-22 02:43:58,876 INFO L226 Difference]: Without dead ends: 750 [2023-12-22 02:43:58,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:43:58,878 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 799 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:58,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [820 Valid, 951 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:43:58,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2023-12-22 02:43:58,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 750. [2023-12-22 02:43:58,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 685 states have (on average 1.583941605839416) internal successors, (1085), 688 states have internal predecessors, (1085), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-22 02:43:58,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1186 transitions. [2023-12-22 02:43:58,907 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1186 transitions. Word has length 172 [2023-12-22 02:43:58,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:58,907 INFO L495 AbstractCegarLoop]: Abstraction has 750 states and 1186 transitions. [2023-12-22 02:43:58,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:43:58,908 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1186 transitions. [2023-12-22 02:43:58,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:43:58,908 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:58,908 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:43:58,918 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 02:43:59,115 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 02:43:59,116 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:43:59,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:43:59,116 INFO L85 PathProgramCache]: Analyzing trace with hash 877579654, now seen corresponding path program 1 times [2023-12-22 02:43:59,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:43:59,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1231631648] [2023-12-22 02:43:59,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:43:59,116 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:43:59,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:43:59,118 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 02:43:59,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:43:59,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:43:59,260 INFO L262 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:43:59,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:43:59,322 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 02:43:59,323 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:43:59,323 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:43:59,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1231631648] [2023-12-22 02:43:59,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1231631648] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:43:59,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:43:59,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:43:59,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122098630] [2023-12-22 02:43:59,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:43:59,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:43:59,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:43:59,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:43:59,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:43:59,324 INFO L87 Difference]: Start difference. First operand 750 states and 1186 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:43:59,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:43:59,780 INFO L93 Difference]: Finished difference Result 1480 states and 2345 transitions. [2023-12-22 02:43:59,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:43:59,780 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:43:59,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:43:59,782 INFO L225 Difference]: With dead ends: 1480 [2023-12-22 02:43:59,782 INFO L226 Difference]: Without dead ends: 750 [2023-12-22 02:43:59,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:43:59,783 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 793 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:43:59,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [814 Valid, 944 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:43:59,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2023-12-22 02:43:59,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 750. [2023-12-22 02:43:59,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 685 states have (on average 1.5737226277372263) internal successors, (1078), 688 states have internal predecessors, (1078), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-22 02:43:59,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1179 transitions. [2023-12-22 02:43:59,812 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1179 transitions. Word has length 172 [2023-12-22 02:43:59,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:43:59,812 INFO L495 AbstractCegarLoop]: Abstraction has 750 states and 1179 transitions. [2023-12-22 02:43:59,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:43:59,812 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1179 transitions. [2023-12-22 02:43:59,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:43:59,813 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:43:59,813 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:43:59,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2023-12-22 02:44:00,019 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 02:44:00,020 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:00,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:00,020 INFO L85 PathProgramCache]: Analyzing trace with hash -692209150, now seen corresponding path program 1 times [2023-12-22 02:44:00,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:00,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2069083007] [2023-12-22 02:44:00,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:00,022 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:00,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:00,023 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 02:44:00,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:44:00,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:00,175 INFO L262 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:00,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:00,241 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 02:44:00,241 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:00,241 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:00,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2069083007] [2023-12-22 02:44:00,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2069083007] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:00,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:00,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:00,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023127231] [2023-12-22 02:44:00,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:00,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:44:00,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:00,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:44:00,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:44:00,243 INFO L87 Difference]: Start difference. First operand 750 states and 1179 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:00,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:00,684 INFO L93 Difference]: Finished difference Result 1480 states and 2331 transitions. [2023-12-22 02:44:00,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:44:00,685 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:44:00,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:00,686 INFO L225 Difference]: With dead ends: 1480 [2023-12-22 02:44:00,686 INFO L226 Difference]: Without dead ends: 750 [2023-12-22 02:44:00,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:44:00,688 INFO L413 NwaCegarLoop]: 363 mSDtfsCounter, 787 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:00,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [808 Valid, 937 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:44:00,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2023-12-22 02:44:00,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 750. [2023-12-22 02:44:00,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 685 states have (on average 1.5635036496350365) internal successors, (1071), 688 states have internal predecessors, (1071), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-22 02:44:00,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1172 transitions. [2023-12-22 02:44:00,721 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1172 transitions. Word has length 172 [2023-12-22 02:44:00,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:00,721 INFO L495 AbstractCegarLoop]: Abstraction has 750 states and 1172 transitions. [2023-12-22 02:44:00,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:00,721 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1172 transitions. [2023-12-22 02:44:00,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:44:00,722 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:00,722 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:00,729 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 02:44:00,928 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 02:44:00,928 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:00,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:00,929 INFO L85 PathProgramCache]: Analyzing trace with hash -188658170, now seen corresponding path program 1 times [2023-12-22 02:44:00,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:00,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1996303174] [2023-12-22 02:44:00,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:00,930 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:00,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:00,931 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 02:44:00,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:44:01,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:01,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:01,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:01,160 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 02:44:01,161 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:01,161 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:01,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1996303174] [2023-12-22 02:44:01,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1996303174] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:01,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:01,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:01,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847154994] [2023-12-22 02:44:01,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:01,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:44:01,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:01,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:44:01,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:44:01,162 INFO L87 Difference]: Start difference. First operand 750 states and 1172 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:01,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:01,561 INFO L93 Difference]: Finished difference Result 1480 states and 2317 transitions. [2023-12-22 02:44:01,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:44:01,562 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:44:01,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:01,563 INFO L225 Difference]: With dead ends: 1480 [2023-12-22 02:44:01,563 INFO L226 Difference]: Without dead ends: 750 [2023-12-22 02:44:01,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:44:01,564 INFO L413 NwaCegarLoop]: 360 mSDtfsCounter, 781 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:01,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [802 Valid, 930 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:44:01,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2023-12-22 02:44:01,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 750. [2023-12-22 02:44:01,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 685 states have (on average 1.5532846715328468) internal successors, (1064), 688 states have internal predecessors, (1064), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-22 02:44:01,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1165 transitions. [2023-12-22 02:44:01,596 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1165 transitions. Word has length 172 [2023-12-22 02:44:01,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:01,596 INFO L495 AbstractCegarLoop]: Abstraction has 750 states and 1165 transitions. [2023-12-22 02:44:01,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:01,596 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1165 transitions. [2023-12-22 02:44:01,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:44:01,597 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:01,597 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:01,603 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2023-12-22 02:44:01,803 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 02:44:01,803 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:01,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:01,803 INFO L85 PathProgramCache]: Analyzing trace with hash -172414590, now seen corresponding path program 1 times [2023-12-22 02:44:01,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:01,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1835502106] [2023-12-22 02:44:01,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:01,804 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:01,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:01,805 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 02:44:01,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:44:01,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:01,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:01,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:02,034 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 02:44:02,035 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:02,035 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:02,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1835502106] [2023-12-22 02:44:02,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1835502106] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:02,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:02,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:02,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63348320] [2023-12-22 02:44:02,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:02,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:44:02,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:02,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:44:02,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:44:02,041 INFO L87 Difference]: Start difference. First operand 750 states and 1165 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:02,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:02,428 INFO L93 Difference]: Finished difference Result 1480 states and 2303 transitions. [2023-12-22 02:44:02,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:44:02,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:44:02,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:02,449 INFO L225 Difference]: With dead ends: 1480 [2023-12-22 02:44:02,449 INFO L226 Difference]: Without dead ends: 750 [2023-12-22 02:44:02,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:44:02,451 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 775 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:02,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [796 Valid, 923 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:44:02,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2023-12-22 02:44:02,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 750. [2023-12-22 02:44:02,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 685 states have (on average 1.543065693430657) internal successors, (1057), 688 states have internal predecessors, (1057), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-22 02:44:02,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1158 transitions. [2023-12-22 02:44:02,515 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1158 transitions. Word has length 172 [2023-12-22 02:44:02,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:02,515 INFO L495 AbstractCegarLoop]: Abstraction has 750 states and 1158 transitions. [2023-12-22 02:44:02,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:02,515 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1158 transitions. [2023-12-22 02:44:02,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:44:02,516 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:02,516 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:02,533 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 02:44:02,722 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 02:44:02,722 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:02,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:02,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1490677382, now seen corresponding path program 1 times [2023-12-22 02:44:02,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:02,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1217323661] [2023-12-22 02:44:02,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:02,723 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:02,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:02,724 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 02:44:02,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:44:02,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:02,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:02,871 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:02,926 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 02:44:02,926 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:02,926 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:02,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1217323661] [2023-12-22 02:44:02,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1217323661] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:02,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:02,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:02,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225325309] [2023-12-22 02:44:02,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:02,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:44:02,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:02,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:44:02,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:44:02,927 INFO L87 Difference]: Start difference. First operand 750 states and 1158 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:03,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:03,361 INFO L93 Difference]: Finished difference Result 1480 states and 2289 transitions. [2023-12-22 02:44:03,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:44:03,362 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:44:03,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:03,363 INFO L225 Difference]: With dead ends: 1480 [2023-12-22 02:44:03,363 INFO L226 Difference]: Without dead ends: 750 [2023-12-22 02:44:03,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:44:03,366 INFO L413 NwaCegarLoop]: 354 mSDtfsCounter, 769 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:03,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 916 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:44:03,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2023-12-22 02:44:03,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 750. [2023-12-22 02:44:03,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 685 states have (on average 1.532846715328467) internal successors, (1050), 688 states have internal predecessors, (1050), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-22 02:44:03,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1151 transitions. [2023-12-22 02:44:03,400 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1151 transitions. Word has length 172 [2023-12-22 02:44:03,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:03,401 INFO L495 AbstractCegarLoop]: Abstraction has 750 states and 1151 transitions. [2023-12-22 02:44:03,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:03,401 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1151 transitions. [2023-12-22 02:44:03,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:44:03,401 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:03,402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:03,410 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 02:44:03,607 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 02:44:03,608 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:03,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:03,608 INFO L85 PathProgramCache]: Analyzing trace with hash -645205820, now seen corresponding path program 1 times [2023-12-22 02:44:03,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:03,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [287812585] [2023-12-22 02:44:03,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:03,609 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:03,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:03,610 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 02:44:03,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:44:03,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:03,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:03,757 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:03,824 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 02:44:03,825 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:03,825 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:03,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [287812585] [2023-12-22 02:44:03,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [287812585] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:03,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:03,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:03,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540126350] [2023-12-22 02:44:03,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:03,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:44:03,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:03,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:44:03,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:44:03,826 INFO L87 Difference]: Start difference. First operand 750 states and 1151 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:04,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:04,428 INFO L93 Difference]: Finished difference Result 1658 states and 2567 transitions. [2023-12-22 02:44:04,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:44:04,428 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:44:04,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:04,429 INFO L225 Difference]: With dead ends: 1658 [2023-12-22 02:44:04,429 INFO L226 Difference]: Without dead ends: 928 [2023-12-22 02:44:04,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:44:04,432 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 885 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 906 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:04,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [906 Valid, 910 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:44:04,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2023-12-22 02:44:04,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 928. [2023-12-22 02:44:04,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 857 states have (on average 1.5134189031505252) internal successors, (1297), 860 states have internal predecessors, (1297), 53 states have call successors, (53), 17 states have call predecessors, (53), 17 states have return successors, (52), 51 states have call predecessors, (52), 51 states have call successors, (52) [2023-12-22 02:44:04,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1402 transitions. [2023-12-22 02:44:04,473 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1402 transitions. Word has length 172 [2023-12-22 02:44:04,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:04,473 INFO L495 AbstractCegarLoop]: Abstraction has 928 states and 1402 transitions. [2023-12-22 02:44:04,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:04,473 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1402 transitions. [2023-12-22 02:44:04,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:44:04,474 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:04,474 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:04,480 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 02:44:04,680 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 02:44:04,680 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:04,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:04,680 INFO L85 PathProgramCache]: Analyzing trace with hash 47442496, now seen corresponding path program 1 times [2023-12-22 02:44:04,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:04,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [590308935] [2023-12-22 02:44:04,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:04,681 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:04,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:04,682 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 02:44:04,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:44:04,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:04,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:04,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:04,958 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 02:44:04,959 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:04,959 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:04,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [590308935] [2023-12-22 02:44:04,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [590308935] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:04,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:04,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:04,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39631238] [2023-12-22 02:44:04,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:04,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:44:04,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:04,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:44:04,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:44:04,960 INFO L87 Difference]: Start difference. First operand 928 states and 1402 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:05,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:05,561 INFO L93 Difference]: Finished difference Result 2014 states and 3069 transitions. [2023-12-22 02:44:05,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:44:05,561 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:44:05,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:05,563 INFO L225 Difference]: With dead ends: 2014 [2023-12-22 02:44:05,563 INFO L226 Difference]: Without dead ends: 1106 [2023-12-22 02:44:05,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:44:05,565 INFO L413 NwaCegarLoop]: 349 mSDtfsCounter, 878 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 899 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:05,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [899 Valid, 903 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:44:05,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2023-12-22 02:44:05,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 1106. [2023-12-22 02:44:05,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1106 states, 1029 states have (on average 1.4965986394557824) internal successors, (1540), 1032 states have internal predecessors, (1540), 55 states have call successors, (55), 21 states have call predecessors, (55), 21 states have return successors, (54), 53 states have call predecessors, (54), 53 states have call successors, (54) [2023-12-22 02:44:05,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1649 transitions. [2023-12-22 02:44:05,609 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1649 transitions. Word has length 172 [2023-12-22 02:44:05,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:05,610 INFO L495 AbstractCegarLoop]: Abstraction has 1106 states and 1649 transitions. [2023-12-22 02:44:05,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:05,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1649 transitions. [2023-12-22 02:44:05,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:44:05,610 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:05,610 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:05,616 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 02:44:05,816 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 02:44:05,816 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:05,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:05,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1130345851, now seen corresponding path program 1 times [2023-12-22 02:44:05,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:05,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [282555563] [2023-12-22 02:44:05,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:05,817 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:05,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:05,818 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 02:44:05,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:44:05,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:05,983 INFO L262 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:05,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:06,043 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 02:44:06,044 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:06,044 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:06,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [282555563] [2023-12-22 02:44:06,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [282555563] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:06,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:06,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:06,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978143244] [2023-12-22 02:44:06,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:06,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:44:06,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:06,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:44:06,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:44:06,045 INFO L87 Difference]: Start difference. First operand 1106 states and 1649 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:06,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:06,558 INFO L93 Difference]: Finished difference Result 2370 states and 3563 transitions. [2023-12-22 02:44:06,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:44:06,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:44:06,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:06,560 INFO L225 Difference]: With dead ends: 2370 [2023-12-22 02:44:06,560 INFO L226 Difference]: Without dead ends: 1284 [2023-12-22 02:44:06,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:44:06,562 INFO L413 NwaCegarLoop]: 346 mSDtfsCounter, 872 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 896 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:06,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [893 Valid, 896 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:44:06,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1284 states. [2023-12-22 02:44:06,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1284 to 1284. [2023-12-22 02:44:06,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1284 states, 1201 states have (on average 1.4812656119900083) internal successors, (1779), 1204 states have internal predecessors, (1779), 57 states have call successors, (57), 25 states have call predecessors, (57), 25 states have return successors, (56), 55 states have call predecessors, (56), 55 states have call successors, (56) [2023-12-22 02:44:06,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1284 states to 1284 states and 1892 transitions. [2023-12-22 02:44:06,611 INFO L78 Accepts]: Start accepts. Automaton has 1284 states and 1892 transitions. Word has length 172 [2023-12-22 02:44:06,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:06,612 INFO L495 AbstractCegarLoop]: Abstraction has 1284 states and 1892 transitions. [2023-12-22 02:44:06,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:06,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1284 states and 1892 transitions. [2023-12-22 02:44:06,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:44:06,612 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:06,613 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:06,619 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 02:44:06,819 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 02:44:06,819 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:06,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:06,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1569813249, now seen corresponding path program 1 times [2023-12-22 02:44:06,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:06,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [641992713] [2023-12-22 02:44:06,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:06,820 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:06,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:06,822 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 02:44:06,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2023-12-22 02:44:06,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:06,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:06,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:07,025 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 02:44:07,025 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:07,026 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:07,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [641992713] [2023-12-22 02:44:07,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [641992713] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:07,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:07,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:07,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424738015] [2023-12-22 02:44:07,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:07,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:44:07,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:07,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:44:07,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:44:07,027 INFO L87 Difference]: Start difference. First operand 1284 states and 1892 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:07,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:07,618 INFO L93 Difference]: Finished difference Result 2726 states and 4049 transitions. [2023-12-22 02:44:07,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:44:07,619 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:44:07,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:07,626 INFO L225 Difference]: With dead ends: 2726 [2023-12-22 02:44:07,626 INFO L226 Difference]: Without dead ends: 1462 [2023-12-22 02:44:07,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:44:07,631 INFO L413 NwaCegarLoop]: 343 mSDtfsCounter, 865 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 886 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:07,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [886 Valid, 889 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:44:07,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2023-12-22 02:44:07,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 1462. [2023-12-22 02:44:07,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 1373 states have (on average 1.4668608885651857) internal successors, (2014), 1376 states have internal predecessors, (2014), 59 states have call successors, (59), 29 states have call predecessors, (59), 29 states have return successors, (58), 57 states have call predecessors, (58), 57 states have call successors, (58) [2023-12-22 02:44:07,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 2131 transitions. [2023-12-22 02:44:07,758 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 2131 transitions. Word has length 172 [2023-12-22 02:44:07,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:07,759 INFO L495 AbstractCegarLoop]: Abstraction has 1462 states and 2131 transitions. [2023-12-22 02:44:07,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:07,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 2131 transitions. [2023-12-22 02:44:07,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:44:07,759 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:07,759 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:07,765 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 02:44:07,960 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 02:44:07,962 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:07,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:07,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1339896198, now seen corresponding path program 1 times [2023-12-22 02:44:07,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:07,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1107960886] [2023-12-22 02:44:07,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:07,964 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:07,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:07,965 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 02:44:07,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:44:08,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:08,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:08,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:08,190 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 02:44:08,191 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:08,191 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:08,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1107960886] [2023-12-22 02:44:08,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1107960886] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:08,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:08,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:08,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317996003] [2023-12-22 02:44:08,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:08,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:44:08,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:08,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:44:08,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:44:08,192 INFO L87 Difference]: Start difference. First operand 1462 states and 2131 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:08,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:08,762 INFO L93 Difference]: Finished difference Result 3082 states and 4527 transitions. [2023-12-22 02:44:08,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:44:08,762 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:44:08,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:08,765 INFO L225 Difference]: With dead ends: 3082 [2023-12-22 02:44:08,765 INFO L226 Difference]: Without dead ends: 1640 [2023-12-22 02:44:08,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:44:08,768 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 858 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 879 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:08,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [879 Valid, 882 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:44:08,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1640 states. [2023-12-22 02:44:08,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1640 to 1640. [2023-12-22 02:44:08,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1640 states, 1545 states have (on average 1.4530744336569579) internal successors, (2245), 1548 states have internal predecessors, (2245), 61 states have call successors, (61), 33 states have call predecessors, (61), 33 states have return successors, (60), 59 states have call predecessors, (60), 59 states have call successors, (60) [2023-12-22 02:44:08,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1640 states to 1640 states and 2366 transitions. [2023-12-22 02:44:08,832 INFO L78 Accepts]: Start accepts. Automaton has 1640 states and 2366 transitions. Word has length 172 [2023-12-22 02:44:08,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:08,834 INFO L495 AbstractCegarLoop]: Abstraction has 1640 states and 2366 transitions. [2023-12-22 02:44:08,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:08,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1640 states and 2366 transitions. [2023-12-22 02:44:08,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:44:08,840 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:08,840 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:44:08,849 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 02:44:09,042 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 02:44:09,043 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:09,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:09,043 INFO L85 PathProgramCache]: Analyzing trace with hash -749955615, now seen corresponding path program 1 times [2023-12-22 02:44:09,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:09,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1782620479] [2023-12-22 02:44:09,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:09,052 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:09,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:09,053 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 02:44:09,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:44:09,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:09,197 INFO L262 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:09,199 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:09,283 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 02:44:09,283 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:09,283 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:09,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1782620479] [2023-12-22 02:44:09,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1782620479] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:09,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:09,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:09,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072402536] [2023-12-22 02:44:09,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:09,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:44:09,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:09,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:44:09,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:44:09,284 INFO L87 Difference]: Start difference. First operand 1640 states and 2366 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:09,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:09,850 INFO L93 Difference]: Finished difference Result 3438 states and 4997 transitions. [2023-12-22 02:44:09,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:44:09,851 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:44:09,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:09,854 INFO L225 Difference]: With dead ends: 3438 [2023-12-22 02:44:09,854 INFO L226 Difference]: Without dead ends: 1818 [2023-12-22 02:44:09,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:44:09,856 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 851 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:09,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [872 Valid, 875 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:44:09,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1818 states. [2023-12-22 02:44:09,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1818 to 1818. [2023-12-22 02:44:09,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1818 states, 1717 states have (on average 1.4397204426324985) internal successors, (2472), 1720 states have internal predecessors, (2472), 63 states have call successors, (63), 37 states have call predecessors, (63), 37 states have return successors, (62), 61 states have call predecessors, (62), 61 states have call successors, (62) [2023-12-22 02:44:09,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1818 states to 1818 states and 2597 transitions. [2023-12-22 02:44:09,924 INFO L78 Accepts]: Start accepts. Automaton has 1818 states and 2597 transitions. Word has length 172 [2023-12-22 02:44:09,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:09,924 INFO L495 AbstractCegarLoop]: Abstraction has 1818 states and 2597 transitions. [2023-12-22 02:44:09,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:09,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1818 states and 2597 transitions. [2023-12-22 02:44:09,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:44:09,925 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:09,925 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:09,930 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 02:44:10,130 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 02:44:10,130 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:10,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:10,131 INFO L85 PathProgramCache]: Analyzing trace with hash 628399845, now seen corresponding path program 1 times [2023-12-22 02:44:10,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:10,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1439686251] [2023-12-22 02:44:10,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:10,131 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:10,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:10,132 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 02:44:10,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:44:10,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:10,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:10,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:10,385 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 02:44:10,386 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:10,386 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:10,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1439686251] [2023-12-22 02:44:10,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1439686251] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:10,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:10,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:10,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668651699] [2023-12-22 02:44:10,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:10,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:44:10,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:10,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:44:10,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:44:10,387 INFO L87 Difference]: Start difference. First operand 1818 states and 2597 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:10,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:10,994 INFO L93 Difference]: Finished difference Result 3794 states and 5459 transitions. [2023-12-22 02:44:11,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:44:11,007 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:44:11,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:11,011 INFO L225 Difference]: With dead ends: 3794 [2023-12-22 02:44:11,011 INFO L226 Difference]: Without dead ends: 1996 [2023-12-22 02:44:11,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:44:11,014 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 844 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 865 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:11,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [865 Valid, 868 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:44:11,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1996 states. [2023-12-22 02:44:11,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1996 to 1996. [2023-12-22 02:44:11,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1996 states, 1889 states have (on average 1.4266807834833246) internal successors, (2695), 1892 states have internal predecessors, (2695), 65 states have call successors, (65), 41 states have call predecessors, (65), 41 states have return successors, (64), 63 states have call predecessors, (64), 63 states have call successors, (64) [2023-12-22 02:44:11,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1996 states to 1996 states and 2824 transitions. [2023-12-22 02:44:11,109 INFO L78 Accepts]: Start accepts. Automaton has 1996 states and 2824 transitions. Word has length 172 [2023-12-22 02:44:11,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:11,109 INFO L495 AbstractCegarLoop]: Abstraction has 1996 states and 2824 transitions. [2023-12-22 02:44:11,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:11,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1996 states and 2824 transitions. [2023-12-22 02:44:11,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:44:11,110 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:11,110 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:11,118 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2023-12-22 02:44:11,312 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 02:44:11,312 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:11,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:11,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1789212990, now seen corresponding path program 1 times [2023-12-22 02:44:11,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:11,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1350900934] [2023-12-22 02:44:11,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:11,313 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:11,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:11,314 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 02:44:11,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:44:11,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:11,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:11,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:11,520 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 02:44:11,520 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:11,520 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:11,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1350900934] [2023-12-22 02:44:11,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1350900934] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:11,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:11,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:11,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364642475] [2023-12-22 02:44:11,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:11,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:44:11,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:11,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:44:11,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:44:11,522 INFO L87 Difference]: Start difference. First operand 1996 states and 2824 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:12,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:12,096 INFO L93 Difference]: Finished difference Result 4150 states and 5913 transitions. [2023-12-22 02:44:12,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:44:12,097 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:44:12,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:12,101 INFO L225 Difference]: With dead ends: 4150 [2023-12-22 02:44:12,101 INFO L226 Difference]: Without dead ends: 2174 [2023-12-22 02:44:12,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:44:12,103 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 836 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:12,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [857 Valid, 861 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:44:12,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2174 states. [2023-12-22 02:44:12,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2174 to 2174. [2023-12-22 02:44:12,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2174 states, 2061 states have (on average 1.4138767588549248) internal successors, (2914), 2064 states have internal predecessors, (2914), 67 states have call successors, (67), 45 states have call predecessors, (67), 45 states have return successors, (66), 65 states have call predecessors, (66), 65 states have call successors, (66) [2023-12-22 02:44:12,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2174 states to 2174 states and 3047 transitions. [2023-12-22 02:44:12,184 INFO L78 Accepts]: Start accepts. Automaton has 2174 states and 3047 transitions. Word has length 172 [2023-12-22 02:44:12,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:12,184 INFO L495 AbstractCegarLoop]: Abstraction has 2174 states and 3047 transitions. [2023-12-22 02:44:12,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:12,184 INFO L276 IsEmpty]: Start isEmpty. Operand 2174 states and 3047 transitions. [2023-12-22 02:44:12,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:44:12,185 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:12,185 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:12,192 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 02:44:12,390 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 02:44:12,390 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:12,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:12,391 INFO L85 PathProgramCache]: Analyzing trace with hash 509816477, now seen corresponding path program 1 times [2023-12-22 02:44:12,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:12,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [42714150] [2023-12-22 02:44:12,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:12,392 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:12,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:12,393 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 02:44:12,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:44:12,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:12,551 INFO L262 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:12,552 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:12,616 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 02:44:12,616 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:12,616 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:12,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [42714150] [2023-12-22 02:44:12,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [42714150] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:12,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:12,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:12,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626332347] [2023-12-22 02:44:12,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:12,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:44:12,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:12,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:44:12,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:44:12,619 INFO L87 Difference]: Start difference. First operand 2174 states and 3047 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:13,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:13,222 INFO L93 Difference]: Finished difference Result 4506 states and 6359 transitions. [2023-12-22 02:44:13,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:44:13,222 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:44:13,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:13,226 INFO L225 Difference]: With dead ends: 4506 [2023-12-22 02:44:13,226 INFO L226 Difference]: Without dead ends: 2352 [2023-12-22 02:44:13,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:44:13,229 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 829 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:13,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 854 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:44:13,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2352 states. [2023-12-22 02:44:13,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2352 to 2352. [2023-12-22 02:44:13,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2352 states, 2233 states have (on average 1.401253918495298) internal successors, (3129), 2236 states have internal predecessors, (3129), 69 states have call successors, (69), 49 states have call predecessors, (69), 49 states have return successors, (68), 67 states have call predecessors, (68), 67 states have call successors, (68) [2023-12-22 02:44:13,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2352 states to 2352 states and 3266 transitions. [2023-12-22 02:44:13,314 INFO L78 Accepts]: Start accepts. Automaton has 2352 states and 3266 transitions. Word has length 172 [2023-12-22 02:44:13,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:13,314 INFO L495 AbstractCegarLoop]: Abstraction has 2352 states and 3266 transitions. [2023-12-22 02:44:13,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:13,315 INFO L276 IsEmpty]: Start isEmpty. Operand 2352 states and 3266 transitions. [2023-12-22 02:44:13,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:44:13,315 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:13,315 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:13,321 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 02:44:13,517 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 02:44:13,517 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:13,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:13,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1730127455, now seen corresponding path program 1 times [2023-12-22 02:44:13,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:13,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2059212689] [2023-12-22 02:44:13,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:13,521 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:13,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:13,522 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 02:44:13,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:44:13,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:13,672 INFO L262 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:13,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:13,736 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 02:44:13,737 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:13,737 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:13,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2059212689] [2023-12-22 02:44:13,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2059212689] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:13,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:13,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:13,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366517048] [2023-12-22 02:44:13,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:13,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:44:13,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:13,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:44:13,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:44:13,738 INFO L87 Difference]: Start difference. First operand 2352 states and 3266 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:14,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:14,294 INFO L93 Difference]: Finished difference Result 4862 states and 6797 transitions. [2023-12-22 02:44:14,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:44:14,295 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:44:14,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:14,299 INFO L225 Difference]: With dead ends: 4862 [2023-12-22 02:44:14,299 INFO L226 Difference]: Without dead ends: 2530 [2023-12-22 02:44:14,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:44:14,301 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 822 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:14,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [843 Valid, 847 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:44:14,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2530 states. [2023-12-22 02:44:14,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2530 to 2530. [2023-12-22 02:44:14,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2530 states, 2405 states have (on average 1.3887733887733889) internal successors, (3340), 2408 states have internal predecessors, (3340), 71 states have call successors, (71), 53 states have call predecessors, (71), 53 states have return successors, (70), 69 states have call predecessors, (70), 69 states have call successors, (70) [2023-12-22 02:44:14,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2530 states to 2530 states and 3481 transitions. [2023-12-22 02:44:14,392 INFO L78 Accepts]: Start accepts. Automaton has 2530 states and 3481 transitions. Word has length 172 [2023-12-22 02:44:14,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:14,393 INFO L495 AbstractCegarLoop]: Abstraction has 2530 states and 3481 transitions. [2023-12-22 02:44:14,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:14,393 INFO L276 IsEmpty]: Start isEmpty. Operand 2530 states and 3481 transitions. [2023-12-22 02:44:14,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:44:14,393 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:14,394 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:14,399 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2023-12-22 02:44:14,599 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 02:44:14,599 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:14,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:14,600 INFO L85 PathProgramCache]: Analyzing trace with hash -103118020, now seen corresponding path program 1 times [2023-12-22 02:44:14,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:14,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [646213152] [2023-12-22 02:44:14,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:14,600 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:14,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:14,601 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 02:44:14,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:44:14,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:14,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:14,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:14,793 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 02:44:14,793 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:14,793 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:14,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [646213152] [2023-12-22 02:44:14,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [646213152] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:14,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:14,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:14,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232316306] [2023-12-22 02:44:14,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:14,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:44:14,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:14,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:44:14,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:44:14,794 INFO L87 Difference]: Start difference. First operand 2530 states and 3481 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:15,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:15,559 INFO L93 Difference]: Finished difference Result 5218 states and 7227 transitions. [2023-12-22 02:44:15,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:44:15,579 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:44:15,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:15,584 INFO L225 Difference]: With dead ends: 5218 [2023-12-22 02:44:15,584 INFO L226 Difference]: Without dead ends: 2708 [2023-12-22 02:44:15,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:44:15,588 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 815 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:15,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [836 Valid, 840 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-22 02:44:15,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2708 states. [2023-12-22 02:44:15,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2708 to 2708. [2023-12-22 02:44:15,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2708 states, 2577 states have (on average 1.376406674427629) internal successors, (3547), 2580 states have internal predecessors, (3547), 73 states have call successors, (73), 57 states have call predecessors, (73), 57 states have return successors, (72), 71 states have call predecessors, (72), 71 states have call successors, (72) [2023-12-22 02:44:15,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2708 states to 2708 states and 3692 transitions. [2023-12-22 02:44:15,723 INFO L78 Accepts]: Start accepts. Automaton has 2708 states and 3692 transitions. Word has length 172 [2023-12-22 02:44:15,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:15,725 INFO L495 AbstractCegarLoop]: Abstraction has 2708 states and 3692 transitions. [2023-12-22 02:44:15,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:15,725 INFO L276 IsEmpty]: Start isEmpty. Operand 2708 states and 3692 transitions. [2023-12-22 02:44:15,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:44:15,726 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:15,726 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:15,732 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 02:44:15,933 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 02:44:15,934 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:15,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:15,934 INFO L85 PathProgramCache]: Analyzing trace with hash 189915841, now seen corresponding path program 1 times [2023-12-22 02:44:15,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:15,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1720794136] [2023-12-22 02:44:15,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:15,935 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:15,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:15,936 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 02:44:15,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2023-12-22 02:44:16,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:16,092 INFO L262 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:16,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:16,155 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 02:44:16,155 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:16,155 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:16,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1720794136] [2023-12-22 02:44:16,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1720794136] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:16,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:16,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:16,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758815406] [2023-12-22 02:44:16,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:16,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:44:16,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:16,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:44:16,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:44:16,157 INFO L87 Difference]: Start difference. First operand 2708 states and 3692 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:16,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:16,774 INFO L93 Difference]: Finished difference Result 5574 states and 7649 transitions. [2023-12-22 02:44:16,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:44:16,775 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:44:16,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:16,780 INFO L225 Difference]: With dead ends: 5574 [2023-12-22 02:44:16,780 INFO L226 Difference]: Without dead ends: 2886 [2023-12-22 02:44:16,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:44:16,783 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 808 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:16,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [829 Valid, 833 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:44:16,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2023-12-22 02:44:17,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 2886. [2023-12-22 02:44:17,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2886 states, 2749 states have (on average 1.364132411786104) internal successors, (3750), 2752 states have internal predecessors, (3750), 75 states have call successors, (75), 61 states have call predecessors, (75), 61 states have return successors, (74), 73 states have call predecessors, (74), 73 states have call successors, (74) [2023-12-22 02:44:17,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2886 states to 2886 states and 3899 transitions. [2023-12-22 02:44:17,038 INFO L78 Accepts]: Start accepts. Automaton has 2886 states and 3899 transitions. Word has length 172 [2023-12-22 02:44:17,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:17,038 INFO L495 AbstractCegarLoop]: Abstraction has 2886 states and 3899 transitions. [2023-12-22 02:44:17,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:17,048 INFO L276 IsEmpty]: Start isEmpty. Operand 2886 states and 3899 transitions. [2023-12-22 02:44:17,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:44:17,049 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:17,049 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:17,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2023-12-22 02:44:17,256 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 02:44:17,256 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:17,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:17,257 INFO L85 PathProgramCache]: Analyzing trace with hash 319305277, now seen corresponding path program 1 times [2023-12-22 02:44:17,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:17,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1761186118] [2023-12-22 02:44:17,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:17,257 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:17,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:17,259 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 02:44:17,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:44:17,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:17,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:17,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:17,505 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 02:44:17,505 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:17,505 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:17,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1761186118] [2023-12-22 02:44:17,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1761186118] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:17,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:17,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:17,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628168976] [2023-12-22 02:44:17,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:17,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:44:17,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:17,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:44:17,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:44:17,506 INFO L87 Difference]: Start difference. First operand 2886 states and 3899 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:18,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:18,212 INFO L93 Difference]: Finished difference Result 5930 states and 8063 transitions. [2023-12-22 02:44:18,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:44:18,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:44:18,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:18,216 INFO L225 Difference]: With dead ends: 5930 [2023-12-22 02:44:18,217 INFO L226 Difference]: Without dead ends: 3064 [2023-12-22 02:44:18,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:44:18,224 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 801 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 822 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:18,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [822 Valid, 826 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 02:44:18,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3064 states. [2023-12-22 02:44:18,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3064 to 3064. [2023-12-22 02:44:18,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3064 states, 2921 states have (on average 1.3519342690859295) internal successors, (3949), 2924 states have internal predecessors, (3949), 77 states have call successors, (77), 65 states have call predecessors, (77), 65 states have return successors, (76), 75 states have call predecessors, (76), 75 states have call successors, (76) [2023-12-22 02:44:18,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3064 states to 3064 states and 4102 transitions. [2023-12-22 02:44:18,366 INFO L78 Accepts]: Start accepts. Automaton has 3064 states and 4102 transitions. Word has length 172 [2023-12-22 02:44:18,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:18,367 INFO L495 AbstractCegarLoop]: Abstraction has 3064 states and 4102 transitions. [2023-12-22 02:44:18,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:18,367 INFO L276 IsEmpty]: Start isEmpty. Operand 3064 states and 4102 transitions. [2023-12-22 02:44:18,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:44:18,369 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:18,377 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:18,382 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2023-12-22 02:44:18,582 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 02:44:18,582 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:18,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:18,582 INFO L85 PathProgramCache]: Analyzing trace with hash -781583358, now seen corresponding path program 1 times [2023-12-22 02:44:18,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:18,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1091712059] [2023-12-22 02:44:18,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:18,583 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:18,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:18,584 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 02:44:18,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:44:18,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:18,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:18,753 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:18,765 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 02:44:18,765 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:18,765 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:18,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1091712059] [2023-12-22 02:44:18,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1091712059] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:18,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:18,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:18,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558843606] [2023-12-22 02:44:18,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:18,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:44:18,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:18,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:44:18,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:44:18,766 INFO L87 Difference]: Start difference. First operand 3064 states and 4102 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:19,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:19,040 INFO L93 Difference]: Finished difference Result 6271 states and 8448 transitions. [2023-12-22 02:44:19,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:44:19,041 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:44:19,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:19,045 INFO L225 Difference]: With dead ends: 6271 [2023-12-22 02:44:19,045 INFO L226 Difference]: Without dead ends: 3228 [2023-12-22 02:44:19,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 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 02:44:19,050 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 119 mSDsluCounter, 963 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 1453 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:19,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 1453 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:44:19,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3228 states. [2023-12-22 02:44:19,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3228 to 3068. [2023-12-22 02:44:19,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3068 states, 2925 states have (on average 1.3425641025641026) internal successors, (3927), 2928 states have internal predecessors, (3927), 77 states have call successors, (77), 65 states have call predecessors, (77), 65 states have return successors, (76), 75 states have call predecessors, (76), 75 states have call successors, (76) [2023-12-22 02:44:19,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3068 states to 3068 states and 4080 transitions. [2023-12-22 02:44:19,163 INFO L78 Accepts]: Start accepts. Automaton has 3068 states and 4080 transitions. Word has length 172 [2023-12-22 02:44:19,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:19,163 INFO L495 AbstractCegarLoop]: Abstraction has 3068 states and 4080 transitions. [2023-12-22 02:44:19,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:19,163 INFO L276 IsEmpty]: Start isEmpty. Operand 3068 states and 4080 transitions. [2023-12-22 02:44:19,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:44:19,164 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:19,164 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:19,169 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 02:44:19,368 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 02:44:19,369 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:19,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:19,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1147348868, now seen corresponding path program 1 times [2023-12-22 02:44:19,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:19,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1308023142] [2023-12-22 02:44:19,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:19,370 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:19,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:19,371 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 02:44:19,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2023-12-22 02:44:19,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:19,502 INFO L262 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:19,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:19,513 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 02:44:19,513 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:19,513 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:19,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1308023142] [2023-12-22 02:44:19,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1308023142] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:19,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:19,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:19,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119416252] [2023-12-22 02:44:19,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:19,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:44:19,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:19,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:44:19,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:44:19,514 INFO L87 Difference]: Start difference. First operand 3068 states and 4080 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:19,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:19,750 INFO L93 Difference]: Finished difference Result 6267 states and 8388 transitions. [2023-12-22 02:44:19,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:44:19,751 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:44:19,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:19,755 INFO L225 Difference]: With dead ends: 6267 [2023-12-22 02:44:19,755 INFO L226 Difference]: Without dead ends: 3220 [2023-12-22 02:44:19,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 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 02:44:19,759 INFO L413 NwaCegarLoop]: 491 mSDtfsCounter, 110 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 1457 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:19,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 1457 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:44:19,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3220 states. [2023-12-22 02:44:19,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3220 to 3072. [2023-12-22 02:44:19,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3072 states, 2929 states have (on average 1.3332195288494366) internal successors, (3905), 2932 states have internal predecessors, (3905), 77 states have call successors, (77), 65 states have call predecessors, (77), 65 states have return successors, (76), 75 states have call predecessors, (76), 75 states have call successors, (76) [2023-12-22 02:44:19,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3072 states to 3072 states and 4058 transitions. [2023-12-22 02:44:19,869 INFO L78 Accepts]: Start accepts. Automaton has 3072 states and 4058 transitions. Word has length 172 [2023-12-22 02:44:19,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:19,870 INFO L495 AbstractCegarLoop]: Abstraction has 3072 states and 4058 transitions. [2023-12-22 02:44:19,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:19,870 INFO L276 IsEmpty]: Start isEmpty. Operand 3072 states and 4058 transitions. [2023-12-22 02:44:19,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:44:19,870 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:19,870 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:19,876 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2023-12-22 02:44:20,071 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 02:44:20,071 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:20,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:20,071 INFO L85 PathProgramCache]: Analyzing trace with hash -984001854, now seen corresponding path program 1 times [2023-12-22 02:44:20,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:20,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [838577970] [2023-12-22 02:44:20,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:20,072 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:20,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:20,073 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 02:44:20,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2023-12-22 02:44:20,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:20,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:20,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:20,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:44:20,231 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:20,231 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:20,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [838577970] [2023-12-22 02:44:20,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [838577970] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:20,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:20,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:20,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446013112] [2023-12-22 02:44:20,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:20,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:44:20,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:20,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:44:20,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:44:20,233 INFO L87 Difference]: Start difference. First operand 3072 states and 4058 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:20,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:20,431 INFO L93 Difference]: Finished difference Result 6263 states and 8328 transitions. [2023-12-22 02:44:20,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:44:20,431 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:44:20,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:20,437 INFO L225 Difference]: With dead ends: 6263 [2023-12-22 02:44:20,437 INFO L226 Difference]: Without dead ends: 3212 [2023-12-22 02:44:20,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 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 02:44:20,440 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 101 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 1455 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:20,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 1455 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:44:20,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3212 states. [2023-12-22 02:44:20,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3212 to 3076. [2023-12-22 02:44:20,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3076 states, 2933 states have (on average 1.3239004432321855) internal successors, (3883), 2936 states have internal predecessors, (3883), 77 states have call successors, (77), 65 states have call predecessors, (77), 65 states have return successors, (76), 75 states have call predecessors, (76), 75 states have call successors, (76) [2023-12-22 02:44:20,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3076 states to 3076 states and 4036 transitions. [2023-12-22 02:44:20,554 INFO L78 Accepts]: Start accepts. Automaton has 3076 states and 4036 transitions. Word has length 172 [2023-12-22 02:44:20,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:20,555 INFO L495 AbstractCegarLoop]: Abstraction has 3076 states and 4036 transitions. [2023-12-22 02:44:20,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:20,555 INFO L276 IsEmpty]: Start isEmpty. Operand 3076 states and 4036 transitions. [2023-12-22 02:44:20,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:44:20,563 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:20,564 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:20,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2023-12-22 02:44:20,764 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 02:44:20,765 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:20,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:20,765 INFO L85 PathProgramCache]: Analyzing trace with hash -865560380, now seen corresponding path program 1 times [2023-12-22 02:44:20,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:20,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [517201913] [2023-12-22 02:44:20,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:20,766 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:20,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:20,767 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 02:44:20,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:44:20,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:20,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:20,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:20,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:44:20,949 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:20,949 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:20,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [517201913] [2023-12-22 02:44:20,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [517201913] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:20,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:20,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:20,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165230170] [2023-12-22 02:44:20,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:20,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:44:20,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:20,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:44:20,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:44:20,950 INFO L87 Difference]: Start difference. First operand 3076 states and 4036 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:21,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:21,143 INFO L93 Difference]: Finished difference Result 6259 states and 8268 transitions. [2023-12-22 02:44:21,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:44:21,144 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:44:21,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:21,149 INFO L225 Difference]: With dead ends: 6259 [2023-12-22 02:44:21,149 INFO L226 Difference]: Without dead ends: 3204 [2023-12-22 02:44:21,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 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 02:44:21,153 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 92 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1456 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:21,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 1456 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:44:21,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3204 states. [2023-12-22 02:44:21,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3204 to 3080. [2023-12-22 02:44:21,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3080 states, 2937 states have (on average 1.3146067415730338) internal successors, (3861), 2940 states have internal predecessors, (3861), 77 states have call successors, (77), 65 states have call predecessors, (77), 65 states have return successors, (76), 75 states have call predecessors, (76), 75 states have call successors, (76) [2023-12-22 02:44:21,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3080 states to 3080 states and 4014 transitions. [2023-12-22 02:44:21,272 INFO L78 Accepts]: Start accepts. Automaton has 3080 states and 4014 transitions. Word has length 172 [2023-12-22 02:44:21,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:21,272 INFO L495 AbstractCegarLoop]: Abstraction has 3080 states and 4014 transitions. [2023-12-22 02:44:21,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:21,272 INFO L276 IsEmpty]: Start isEmpty. Operand 3080 states and 4014 transitions. [2023-12-22 02:44:21,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:44:21,273 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:21,273 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:21,288 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 02:44:21,477 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 02:44:21,479 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:21,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:21,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1031936386, now seen corresponding path program 1 times [2023-12-22 02:44:21,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:21,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2013492055] [2023-12-22 02:44:21,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:21,480 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:21,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:21,481 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 02:44:21,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:44:21,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:21,635 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:21,638 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:21,648 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 02:44:21,649 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:21,649 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:21,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2013492055] [2023-12-22 02:44:21,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2013492055] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:21,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:21,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:21,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548033605] [2023-12-22 02:44:21,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:21,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:44:21,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:21,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:44:21,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:44:21,651 INFO L87 Difference]: Start difference. First operand 3080 states and 4014 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:21,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:21,956 INFO L93 Difference]: Finished difference Result 6255 states and 8208 transitions. [2023-12-22 02:44:21,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:44:21,964 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:44:21,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:21,969 INFO L225 Difference]: With dead ends: 6255 [2023-12-22 02:44:21,969 INFO L226 Difference]: Without dead ends: 3196 [2023-12-22 02:44:21,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 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 02:44:21,972 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 83 mSDsluCounter, 967 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1457 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:21,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 1457 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:44:21,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3196 states. [2023-12-22 02:44:22,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3196 to 3084. [2023-12-22 02:44:22,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3084 states, 2941 states have (on average 1.305338320299218) internal successors, (3839), 2944 states have internal predecessors, (3839), 77 states have call successors, (77), 65 states have call predecessors, (77), 65 states have return successors, (76), 75 states have call predecessors, (76), 75 states have call successors, (76) [2023-12-22 02:44:22,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3084 states to 3084 states and 3992 transitions. [2023-12-22 02:44:22,165 INFO L78 Accepts]: Start accepts. Automaton has 3084 states and 3992 transitions. Word has length 172 [2023-12-22 02:44:22,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:22,165 INFO L495 AbstractCegarLoop]: Abstraction has 3084 states and 3992 transitions. [2023-12-22 02:44:22,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:22,165 INFO L276 IsEmpty]: Start isEmpty. Operand 3084 states and 3992 transitions. [2023-12-22 02:44:22,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:44:22,166 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:22,166 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:22,171 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 02:44:22,370 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 02:44:22,371 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:22,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:22,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1911645692, now seen corresponding path program 1 times [2023-12-22 02:44:22,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:22,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1882506170] [2023-12-22 02:44:22,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:22,372 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:22,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:22,373 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 02:44:22,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:44:22,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:22,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:22,514 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:22,525 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 02:44:22,526 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:22,526 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:22,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1882506170] [2023-12-22 02:44:22,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1882506170] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:22,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:22,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:22,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877828188] [2023-12-22 02:44:22,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:22,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:44:22,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:22,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:44:22,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:44:22,527 INFO L87 Difference]: Start difference. First operand 3084 states and 3992 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:22,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:22,723 INFO L93 Difference]: Finished difference Result 6239 states and 8132 transitions. [2023-12-22 02:44:22,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:44:22,723 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:44:22,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:22,729 INFO L225 Difference]: With dead ends: 6239 [2023-12-22 02:44:22,729 INFO L226 Difference]: Without dead ends: 3176 [2023-12-22 02:44:22,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 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 02:44:22,732 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 65 mSDsluCounter, 969 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1459 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:22,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1459 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:44:22,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3176 states. [2023-12-22 02:44:22,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3176 to 3088. [2023-12-22 02:44:22,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3088 states, 2945 states have (on average 1.2960950764006791) internal successors, (3817), 2948 states have internal predecessors, (3817), 77 states have call successors, (77), 65 states have call predecessors, (77), 65 states have return successors, (76), 75 states have call predecessors, (76), 75 states have call successors, (76) [2023-12-22 02:44:22,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3088 states to 3088 states and 3970 transitions. [2023-12-22 02:44:22,844 INFO L78 Accepts]: Start accepts. Automaton has 3088 states and 3970 transitions. Word has length 172 [2023-12-22 02:44:22,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:22,844 INFO L495 AbstractCegarLoop]: Abstraction has 3088 states and 3970 transitions. [2023-12-22 02:44:22,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:22,845 INFO L276 IsEmpty]: Start isEmpty. Operand 3088 states and 3970 transitions. [2023-12-22 02:44:22,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:44:22,845 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:22,845 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:22,850 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 02:44:23,050 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 02:44:23,051 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:23,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:23,051 INFO L85 PathProgramCache]: Analyzing trace with hash -35162874, now seen corresponding path program 1 times [2023-12-22 02:44:23,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:23,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1713598174] [2023-12-22 02:44:23,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:23,052 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:23,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:23,053 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 02:44:23,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:44:23,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:23,191 INFO L262 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:23,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:23,211 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 02:44:23,211 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:23,211 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:23,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1713598174] [2023-12-22 02:44:23,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1713598174] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:23,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:23,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:23,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680722263] [2023-12-22 02:44:23,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:23,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:44:23,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:23,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:44:23,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:44:23,213 INFO L87 Difference]: Start difference. First operand 3088 states and 3970 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:23,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:23,400 INFO L93 Difference]: Finished difference Result 7275 states and 9464 transitions. [2023-12-22 02:44:23,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:44:23,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:44:23,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:23,406 INFO L225 Difference]: With dead ends: 7275 [2023-12-22 02:44:23,406 INFO L226 Difference]: Without dead ends: 4208 [2023-12-22 02:44:23,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 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 02:44:23,410 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 56 mSDsluCounter, 975 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1465 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:23,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 1465 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:44:23,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4208 states. [2023-12-22 02:44:23,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4208 to 3144. [2023-12-22 02:44:23,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3144 states, 3001 states have (on average 1.2905698100633123) internal successors, (3873), 3004 states have internal predecessors, (3873), 77 states have call successors, (77), 65 states have call predecessors, (77), 65 states have return successors, (76), 75 states have call predecessors, (76), 75 states have call successors, (76) [2023-12-22 02:44:23,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3144 states to 3144 states and 4026 transitions. [2023-12-22 02:44:23,526 INFO L78 Accepts]: Start accepts. Automaton has 3144 states and 4026 transitions. Word has length 172 [2023-12-22 02:44:23,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:23,527 INFO L495 AbstractCegarLoop]: Abstraction has 3144 states and 4026 transitions. [2023-12-22 02:44:23,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:23,527 INFO L276 IsEmpty]: Start isEmpty. Operand 3144 states and 4026 transitions. [2023-12-22 02:44:23,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:44:23,527 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:23,528 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:23,532 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 02:44:23,728 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 02:44:23,728 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:23,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:23,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1177665340, now seen corresponding path program 1 times [2023-12-22 02:44:23,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:23,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1551725724] [2023-12-22 02:44:23,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:23,729 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 02:44:23,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:23,730 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 02:44:23,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:44:23,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:23,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:23,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:23,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:44:23,879 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:23,880 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:23,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1551725724] [2023-12-22 02:44:23,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1551725724] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:23,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:23,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:23,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895029316] [2023-12-22 02:44:23,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:23,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:44:23,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:23,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:44:23,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:44:23,881 INFO L87 Difference]: Start difference. First operand 3144 states and 4026 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:24,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:24,067 INFO L93 Difference]: Finished difference Result 6335 states and 8166 transitions. [2023-12-22 02:44:24,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:44:24,068 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:44:24,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:24,073 INFO L225 Difference]: With dead ends: 6335 [2023-12-22 02:44:24,073 INFO L226 Difference]: Without dead ends: 3212 [2023-12-22 02:44:24,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 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 02:44:24,076 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 47 mSDsluCounter, 970 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 1460 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:24,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 1460 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:44:24,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3212 states. [2023-12-22 02:44:24,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3212 to 3148. [2023-12-22 02:44:24,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3148 states, 3005 states have (on average 1.2815307820299502) internal successors, (3851), 3008 states have internal predecessors, (3851), 77 states have call successors, (77), 65 states have call predecessors, (77), 65 states have return successors, (76), 75 states have call predecessors, (76), 75 states have call successors, (76) [2023-12-22 02:44:24,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 4004 transitions. [2023-12-22 02:44:24,193 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 4004 transitions. Word has length 172 [2023-12-22 02:44:24,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:24,195 INFO L495 AbstractCegarLoop]: Abstraction has 3148 states and 4004 transitions. [2023-12-22 02:44:24,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:24,195 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 4004 transitions. [2023-12-22 02:44:24,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:44:24,195 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:24,195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:24,201 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 02:44:24,396 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 02:44:24,397 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:24,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:24,397 INFO L85 PathProgramCache]: Analyzing trace with hash 556439110, now seen corresponding path program 1 times [2023-12-22 02:44:24,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:24,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [541923320] [2023-12-22 02:44:24,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:24,398 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:24,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:24,399 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 02:44:24,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:44:24,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:24,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:24,538 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:24,547 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 02:44:24,547 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:24,547 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:24,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [541923320] [2023-12-22 02:44:24,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [541923320] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:24,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:24,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:24,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528916476] [2023-12-22 02:44:24,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:24,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:44:24,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:24,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:44:24,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:44:24,549 INFO L87 Difference]: Start difference. First operand 3148 states and 4004 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:24,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:24,743 INFO L93 Difference]: Finished difference Result 6331 states and 8106 transitions. [2023-12-22 02:44:24,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:44:24,744 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:44:24,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:24,748 INFO L225 Difference]: With dead ends: 6331 [2023-12-22 02:44:24,748 INFO L226 Difference]: Without dead ends: 3204 [2023-12-22 02:44:24,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 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 02:44:24,752 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 38 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 1461 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:24,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 1461 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:44:24,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3204 states. [2023-12-22 02:44:24,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3204 to 3152. [2023-12-22 02:44:24,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3152 states, 3009 states have (on average 1.272515785975407) internal successors, (3829), 3012 states have internal predecessors, (3829), 77 states have call successors, (77), 65 states have call predecessors, (77), 65 states have return successors, (76), 75 states have call predecessors, (76), 75 states have call successors, (76) [2023-12-22 02:44:24,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3152 states to 3152 states and 3982 transitions. [2023-12-22 02:44:24,865 INFO L78 Accepts]: Start accepts. Automaton has 3152 states and 3982 transitions. Word has length 172 [2023-12-22 02:44:24,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:24,866 INFO L495 AbstractCegarLoop]: Abstraction has 3152 states and 3982 transitions. [2023-12-22 02:44:24,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:24,866 INFO L276 IsEmpty]: Start isEmpty. Operand 3152 states and 3982 transitions. [2023-12-22 02:44:24,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:44:24,866 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:24,866 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:24,871 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (55)] Ended with exit code 0 [2023-12-22 02:44:25,072 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 02:44:25,072 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:25,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:25,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1830070396, now seen corresponding path program 1 times [2023-12-22 02:44:25,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:25,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [135456124] [2023-12-22 02:44:25,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:25,073 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:25,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:25,075 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 02:44:25,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:44:25,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:25,212 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:25,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:25,225 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 02:44:25,226 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:25,226 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:25,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [135456124] [2023-12-22 02:44:25,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [135456124] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:25,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:25,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:25,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552122572] [2023-12-22 02:44:25,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:25,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:44:25,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:25,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:44:25,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:44:25,227 INFO L87 Difference]: Start difference. First operand 3152 states and 3982 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:25,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:25,418 INFO L93 Difference]: Finished difference Result 6327 states and 8046 transitions. [2023-12-22 02:44:25,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:44:25,418 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:44:25,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:25,423 INFO L225 Difference]: With dead ends: 6327 [2023-12-22 02:44:25,423 INFO L226 Difference]: Without dead ends: 3196 [2023-12-22 02:44:25,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 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 02:44:25,426 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 29 mSDsluCounter, 972 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 1462 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:25,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 1462 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:44:25,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3196 states. [2023-12-22 02:44:25,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3196 to 3156. [2023-12-22 02:44:25,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3156 states, 3013 states have (on average 1.263524726186525) internal successors, (3807), 3016 states have internal predecessors, (3807), 77 states have call successors, (77), 65 states have call predecessors, (77), 65 states have return successors, (76), 75 states have call predecessors, (76), 75 states have call successors, (76) [2023-12-22 02:44:25,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3156 states to 3156 states and 3960 transitions. [2023-12-22 02:44:25,540 INFO L78 Accepts]: Start accepts. Automaton has 3156 states and 3960 transitions. Word has length 172 [2023-12-22 02:44:25,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:25,540 INFO L495 AbstractCegarLoop]: Abstraction has 3156 states and 3960 transitions. [2023-12-22 02:44:25,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:25,540 INFO L276 IsEmpty]: Start isEmpty. Operand 3156 states and 3960 transitions. [2023-12-22 02:44:25,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:44:25,541 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:25,541 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:25,546 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 02:44:25,741 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 02:44:25,742 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:25,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:25,742 INFO L85 PathProgramCache]: Analyzing trace with hash 778717062, now seen corresponding path program 1 times [2023-12-22 02:44:25,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:25,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2138131684] [2023-12-22 02:44:25,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:25,743 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:25,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:25,744 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 02:44:25,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2023-12-22 02:44:25,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:25,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:25,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:25,896 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 02:44:25,897 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:25,897 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:25,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2138131684] [2023-12-22 02:44:25,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2138131684] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:25,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:25,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:25,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825828227] [2023-12-22 02:44:25,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:25,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:44:25,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:25,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:44:25,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:44:25,899 INFO L87 Difference]: Start difference. First operand 3156 states and 3960 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:26,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:26,114 INFO L93 Difference]: Finished difference Result 6323 states and 7986 transitions. [2023-12-22 02:44:26,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:44:26,114 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:44:26,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:26,119 INFO L225 Difference]: With dead ends: 6323 [2023-12-22 02:44:26,119 INFO L226 Difference]: Without dead ends: 3188 [2023-12-22 02:44:26,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 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 02:44:26,129 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 20 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:26,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1463 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:44:26,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3188 states. [2023-12-22 02:44:26,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3188 to 3160. [2023-12-22 02:44:26,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3160 states, 3017 states have (on average 1.2545575074577395) internal successors, (3785), 3020 states have internal predecessors, (3785), 77 states have call successors, (77), 65 states have call predecessors, (77), 65 states have return successors, (76), 75 states have call predecessors, (76), 75 states have call successors, (76) [2023-12-22 02:44:26,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3160 states to 3160 states and 3938 transitions. [2023-12-22 02:44:26,252 INFO L78 Accepts]: Start accepts. Automaton has 3160 states and 3938 transitions. Word has length 172 [2023-12-22 02:44:26,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:26,252 INFO L495 AbstractCegarLoop]: Abstraction has 3160 states and 3938 transitions. [2023-12-22 02:44:26,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:26,252 INFO L276 IsEmpty]: Start isEmpty. Operand 3160 states and 3938 transitions. [2023-12-22 02:44:26,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:44:26,253 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:26,253 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:26,257 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 02:44:26,458 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 02:44:26,459 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:26,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:26,459 INFO L85 PathProgramCache]: Analyzing trace with hash 980540996, now seen corresponding path program 1 times [2023-12-22 02:44:26,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:26,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684816922] [2023-12-22 02:44:26,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:26,460 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:26,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:26,461 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 02:44:26,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:44:26,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:26,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 02:44:26,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:26,619 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 02:44:26,619 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:26,620 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:26,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684816922] [2023-12-22 02:44:26,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1684816922] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:26,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:26,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:26,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277826326] [2023-12-22 02:44:26,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:26,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:44:26,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:26,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:44:26,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:44:26,621 INFO L87 Difference]: Start difference. First operand 3160 states and 3938 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:26,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:26,876 INFO L93 Difference]: Finished difference Result 6307 states and 7910 transitions. [2023-12-22 02:44:26,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:44:26,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:44:26,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:26,881 INFO L225 Difference]: With dead ends: 6307 [2023-12-22 02:44:26,881 INFO L226 Difference]: Without dead ends: 3168 [2023-12-22 02:44:26,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 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 02:44:26,884 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 2 mSDsluCounter, 975 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1465 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:26,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1465 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:44:26,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3168 states. [2023-12-22 02:44:26,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3168 to 3164. [2023-12-22 02:44:26,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3164 states, 3021 states have (on average 1.2456140350877194) internal successors, (3763), 3024 states have internal predecessors, (3763), 77 states have call successors, (77), 65 states have call predecessors, (77), 65 states have return successors, (76), 75 states have call predecessors, (76), 75 states have call successors, (76) [2023-12-22 02:44:26,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3164 states to 3164 states and 3916 transitions. [2023-12-22 02:44:26,997 INFO L78 Accepts]: Start accepts. Automaton has 3164 states and 3916 transitions. Word has length 172 [2023-12-22 02:44:26,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:26,998 INFO L495 AbstractCegarLoop]: Abstraction has 3164 states and 3916 transitions. [2023-12-22 02:44:26,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:26,998 INFO L276 IsEmpty]: Start isEmpty. Operand 3164 states and 3916 transitions. [2023-12-22 02:44:26,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:44:26,998 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:26,998 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:27,004 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (58)] Ended with exit code 0 [2023-12-22 02:44:27,203 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 02:44:27,203 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:27,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:27,204 INFO L85 PathProgramCache]: Analyzing trace with hash 499460738, now seen corresponding path program 1 times [2023-12-22 02:44:27,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:27,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2058427820] [2023-12-22 02:44:27,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:27,205 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:27,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:27,206 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 02:44:27,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:44:27,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:27,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 02:44:27,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:27,503 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 02:44:27,504 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:27,504 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:27,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2058427820] [2023-12-22 02:44:27,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2058427820] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:27,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:27,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:27,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908262763] [2023-12-22 02:44:27,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:27,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:44:27,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:27,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:44:27,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:44:27,505 INFO L87 Difference]: Start difference. First operand 3164 states and 3916 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:28,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:28,006 INFO L93 Difference]: Finished difference Result 6308 states and 7805 transitions. [2023-12-22 02:44:28,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:44:28,007 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:44:28,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:28,011 INFO L225 Difference]: With dead ends: 6308 [2023-12-22 02:44:28,011 INFO L226 Difference]: Without dead ends: 3164 [2023-12-22 02:44:28,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:44:28,014 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 605 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 625 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:28,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [625 Valid, 818 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:44:28,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3164 states. [2023-12-22 02:44:28,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3164 to 3164. [2023-12-22 02:44:28,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3164 states, 3021 states have (on average 1.2432969215491558) internal successors, (3756), 3024 states have internal predecessors, (3756), 77 states have call successors, (77), 65 states have call predecessors, (77), 65 states have return successors, (76), 75 states have call predecessors, (76), 75 states have call successors, (76) [2023-12-22 02:44:28,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3164 states to 3164 states and 3909 transitions. [2023-12-22 02:44:28,140 INFO L78 Accepts]: Start accepts. Automaton has 3164 states and 3909 transitions. Word has length 172 [2023-12-22 02:44:28,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:28,140 INFO L495 AbstractCegarLoop]: Abstraction has 3164 states and 3909 transitions. [2023-12-22 02:44:28,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:28,140 INFO L276 IsEmpty]: Start isEmpty. Operand 3164 states and 3909 transitions. [2023-12-22 02:44:28,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:44:28,141 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:28,141 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:28,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (59)] Forceful destruction successful, exit code 0 [2023-12-22 02:44:28,347 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 02:44:28,347 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:28,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:28,347 INFO L85 PathProgramCache]: Analyzing trace with hash 923107460, now seen corresponding path program 1 times [2023-12-22 02:44:28,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:28,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1194984898] [2023-12-22 02:44:28,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:28,348 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:28,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:28,349 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 02:44:28,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:44:28,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:28,485 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 02:44:28,487 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:28,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 02:44:28,626 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:28,626 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:28,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1194984898] [2023-12-22 02:44:28,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1194984898] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:28,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:28,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:28,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826548943] [2023-12-22 02:44:28,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:28,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:44:28,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:28,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:44:28,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:44:28,629 INFO L87 Difference]: Start difference. First operand 3164 states and 3909 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:29,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:29,097 INFO L93 Difference]: Finished difference Result 6308 states and 7791 transitions. [2023-12-22 02:44:29,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 02:44:29,098 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:44:29,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:29,103 INFO L225 Difference]: With dead ends: 6308 [2023-12-22 02:44:29,103 INFO L226 Difference]: Without dead ends: 3164 [2023-12-22 02:44:29,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 02:44:29,106 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 592 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:29,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [612 Valid, 811 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-22 02:44:29,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3164 states. [2023-12-22 02:44:29,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3164 to 3164. [2023-12-22 02:44:29,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3164 states, 3021 states have (on average 1.2409798080105925) internal successors, (3749), 3024 states have internal predecessors, (3749), 77 states have call successors, (77), 65 states have call predecessors, (77), 65 states have return successors, (76), 75 states have call predecessors, (76), 75 states have call successors, (76) [2023-12-22 02:44:29,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3164 states to 3164 states and 3902 transitions. [2023-12-22 02:44:29,227 INFO L78 Accepts]: Start accepts. Automaton has 3164 states and 3902 transitions. Word has length 172 [2023-12-22 02:44:29,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:29,227 INFO L495 AbstractCegarLoop]: Abstraction has 3164 states and 3902 transitions. [2023-12-22 02:44:29,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:29,227 INFO L276 IsEmpty]: Start isEmpty. Operand 3164 states and 3902 transitions. [2023-12-22 02:44:29,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:44:29,228 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:29,228 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:29,234 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 02:44:29,433 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 02:44:29,434 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:29,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:29,434 INFO L85 PathProgramCache]: Analyzing trace with hash 850720902, now seen corresponding path program 1 times [2023-12-22 02:44:29,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:29,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [890490480] [2023-12-22 02:44:29,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:29,435 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:44:29,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:29,436 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 02:44:29,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:44:29,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:29,580 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 02:44:29,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:29,749 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 02:44:29,749 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:29,750 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:29,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [890490480] [2023-12-22 02:44:29,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [890490480] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:29,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:29,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:29,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485808803] [2023-12-22 02:44:29,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:29,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-22 02:44:29,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:29,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-22 02:44:29,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-22 02:44:29,751 INFO L87 Difference]: Start difference. First operand 3164 states and 3902 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:30,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:30,354 INFO L93 Difference]: Finished difference Result 6508 states and 8053 transitions. [2023-12-22 02:44:30,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 02:44:30,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 172 [2023-12-22 02:44:30,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:30,360 INFO L225 Difference]: With dead ends: 6508 [2023-12-22 02:44:30,360 INFO L226 Difference]: Without dead ends: 3364 [2023-12-22 02:44:30,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 168 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 02:44:30,363 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 725 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:30,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 806 Invalid, 778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:44:30,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3364 states. [2023-12-22 02:44:30,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3364 to 3284. [2023-12-22 02:44:30,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3284 states, 3139 states have (on average 1.223319528512265) internal successors, (3840), 3142 states have internal predecessors, (3840), 77 states have call successors, (77), 67 states have call predecessors, (77), 67 states have return successors, (76), 75 states have call predecessors, (76), 75 states have call successors, (76) [2023-12-22 02:44:30,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3284 states to 3284 states and 3993 transitions. [2023-12-22 02:44:30,492 INFO L78 Accepts]: Start accepts. Automaton has 3284 states and 3993 transitions. Word has length 172 [2023-12-22 02:44:30,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:30,492 INFO L495 AbstractCegarLoop]: Abstraction has 3284 states and 3993 transitions. [2023-12-22 02:44:30,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 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 02:44:30,493 INFO L276 IsEmpty]: Start isEmpty. Operand 3284 states and 3993 transitions. [2023-12-22 02:44:30,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 02:44:30,493 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:30,493 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:30,498 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (61)] Ended with exit code 0 [2023-12-22 02:44:30,698 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 02:44:30,699 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:30,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:30,699 INFO L85 PathProgramCache]: Analyzing trace with hash 991269512, now seen corresponding path program 1 times [2023-12-22 02:44:30,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:30,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [887576752] [2023-12-22 02:44:30,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:30,700 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:30,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:30,701 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 02:44:30,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:44:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:30,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:44:30,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:30,990 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 02:44:30,991 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:30,991 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:30,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [887576752] [2023-12-22 02:44:30,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [887576752] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:30,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:30,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:44:30,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345181877] [2023-12-22 02:44:30,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:30,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:44:30,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:30,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:44:30,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:44:30,992 INFO L87 Difference]: Start difference. First operand 3284 states and 3993 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 2 states have internal predecessors, (161), 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 02:44:31,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:31,303 INFO L93 Difference]: Finished difference Result 9759 states and 11902 transitions. [2023-12-22 02:44:31,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:44:31,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 2 states have internal predecessors, (161), 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 172 [2023-12-22 02:44:31,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:31,314 INFO L225 Difference]: With dead ends: 9759 [2023-12-22 02:44:31,314 INFO L226 Difference]: Without dead ends: 6496 [2023-12-22 02:44:31,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 170 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 02:44:31,319 INFO L413 NwaCegarLoop]: 534 mSDtfsCounter, 342 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:31,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 973 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:44:31,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6496 states. [2023-12-22 02:44:31,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6496 to 6494. [2023-12-22 02:44:31,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6494 states, 6211 states have (on average 1.2163902753179843) internal successors, (7555), 6217 states have internal predecessors, (7555), 148 states have call successors, (148), 133 states have call predecessors, (148), 134 states have return successors, (148), 144 states have call predecessors, (148), 146 states have call successors, (148) [2023-12-22 02:44:31,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6494 states to 6494 states and 7851 transitions. [2023-12-22 02:44:31,666 INFO L78 Accepts]: Start accepts. Automaton has 6494 states and 7851 transitions. Word has length 172 [2023-12-22 02:44:31,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:31,666 INFO L495 AbstractCegarLoop]: Abstraction has 6494 states and 7851 transitions. [2023-12-22 02:44:31,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 2 states have internal predecessors, (161), 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 02:44:31,666 INFO L276 IsEmpty]: Start isEmpty. Operand 6494 states and 7851 transitions. [2023-12-22 02:44:31,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2023-12-22 02:44:31,669 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:31,669 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, 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, 1, 1, 1, 1, 1, 1] [2023-12-22 02:44:31,674 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 02:44:31,874 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 02:44:31,874 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:31,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:31,875 INFO L85 PathProgramCache]: Analyzing trace with hash -351194277, now seen corresponding path program 1 times [2023-12-22 02:44:31,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:31,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [972288463] [2023-12-22 02:44:31,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:31,875 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:31,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:31,881 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 02:44:31,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:44:32,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:32,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:44:32,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:32,239 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-22 02:44:32,239 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:32,239 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:32,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [972288463] [2023-12-22 02:44:32,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [972288463] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:32,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:32,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 02:44:32,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490487541] [2023-12-22 02:44:32,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:32,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:44:32,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:32,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:44:32,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:44:32,241 INFO L87 Difference]: Start difference. First operand 6494 states and 7851 transitions. Second operand has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 2 states have internal predecessors, (253), 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 02:44:32,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:32,809 INFO L93 Difference]: Finished difference Result 18997 states and 23066 transitions. [2023-12-22 02:44:32,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:44:32,811 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 2 states have internal predecessors, (253), 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 276 [2023-12-22 02:44:32,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:32,830 INFO L225 Difference]: With dead ends: 18997 [2023-12-22 02:44:32,830 INFO L226 Difference]: Without dead ends: 12524 [2023-12-22 02:44:32,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 274 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 02:44:32,843 INFO L413 NwaCegarLoop]: 534 mSDtfsCounter, 344 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:32,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 975 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:44:32,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12524 states. [2023-12-22 02:44:33,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12524 to 12516. [2023-12-22 02:44:33,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12516 states, 11973 states have (on average 1.211642863108661) internal successors, (14507), 11983 states have internal predecessors, (14507), 282 states have call successors, (282), 257 states have call predecessors, (282), 260 states have return successors, (284), 276 states have call predecessors, (284), 280 states have call successors, (284) [2023-12-22 02:44:33,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12516 states to 12516 states and 15073 transitions. [2023-12-22 02:44:33,356 INFO L78 Accepts]: Start accepts. Automaton has 12516 states and 15073 transitions. Word has length 276 [2023-12-22 02:44:33,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:33,356 INFO L495 AbstractCegarLoop]: Abstraction has 12516 states and 15073 transitions. [2023-12-22 02:44:33,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 2 states have internal predecessors, (253), 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 02:44:33,356 INFO L276 IsEmpty]: Start isEmpty. Operand 12516 states and 15073 transitions. [2023-12-22 02:44:33,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2023-12-22 02:44:33,360 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:33,361 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, 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 02:44:33,368 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 02:44:33,568 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 02:44:33,568 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:33,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:33,568 INFO L85 PathProgramCache]: Analyzing trace with hash 776475162, now seen corresponding path program 1 times [2023-12-22 02:44:33,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:33,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1104497123] [2023-12-22 02:44:33,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:33,569 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:33,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:33,570 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 02:44:33,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:44:33,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:33,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 648 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:44:33,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:34,024 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-12-22 02:44:34,024 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:34,024 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:34,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1104497123] [2023-12-22 02:44:34,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1104497123] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:34,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:34,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:34,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842666992] [2023-12-22 02:44:34,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:34,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:44:34,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:34,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:44:34,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:44:34,026 INFO L87 Difference]: Start difference. First operand 12516 states and 15073 transitions. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 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 02:44:35,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:35,412 INFO L93 Difference]: Finished difference Result 37326 states and 44900 transitions. [2023-12-22 02:44:35,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:44:35,412 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 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 276 [2023-12-22 02:44:35,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:35,454 INFO L225 Difference]: With dead ends: 37326 [2023-12-22 02:44:35,454 INFO L226 Difference]: Without dead ends: 24832 [2023-12-22 02:44:35,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 274 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 02:44:35,472 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 701 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 1416 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:35,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 1416 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-22 02:44:35,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24832 states. [2023-12-22 02:44:36,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24832 to 24828. [2023-12-22 02:44:36,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24828 states, 23754 states have (on average 1.2072914035530857) internal successors, (28678), 23777 states have internal predecessors, (28678), 553 states have call successors, (553), 505 states have call predecessors, (553), 520 states have return successors, (591), 547 states have call predecessors, (591), 551 states have call successors, (591) [2023-12-22 02:44:36,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24828 states to 24828 states and 29822 transitions. [2023-12-22 02:44:36,553 INFO L78 Accepts]: Start accepts. Automaton has 24828 states and 29822 transitions. Word has length 276 [2023-12-22 02:44:36,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:36,553 INFO L495 AbstractCegarLoop]: Abstraction has 24828 states and 29822 transitions. [2023-12-22 02:44:36,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 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 02:44:36,554 INFO L276 IsEmpty]: Start isEmpty. Operand 24828 states and 29822 transitions. [2023-12-22 02:44:36,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2023-12-22 02:44:36,563 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:36,563 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, 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 02:44:36,571 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 02:44:36,771 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 02:44:36,771 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:36,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:36,771 INFO L85 PathProgramCache]: Analyzing trace with hash -2136350948, now seen corresponding path program 1 times [2023-12-22 02:44:36,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:36,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684748062] [2023-12-22 02:44:36,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:36,772 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:36,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:36,774 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 02:44:36,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:44:36,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:36,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 648 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:44:36,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:36,986 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2023-12-22 02:44:36,986 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:36,986 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:36,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684748062] [2023-12-22 02:44:36,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1684748062] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:36,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:36,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:44:36,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690058058] [2023-12-22 02:44:36,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:36,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:44:36,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:36,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:44:36,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:44:36,992 INFO L87 Difference]: Start difference. First operand 24828 states and 29822 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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 02:44:37,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:37,836 INFO L93 Difference]: Finished difference Result 43608 states and 52359 transitions. [2023-12-22 02:44:37,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:44:37,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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 276 [2023-12-22 02:44:37,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:37,867 INFO L225 Difference]: With dead ends: 43608 [2023-12-22 02:44:37,867 INFO L226 Difference]: Without dead ends: 18802 [2023-12-22 02:44:37,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 274 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 02:44:37,894 INFO L413 NwaCegarLoop]: 480 mSDtfsCounter, 521 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:37,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 480 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:44:37,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18802 states. [2023-12-22 02:44:38,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18802 to 18802. [2023-12-22 02:44:38,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18802 states, 17991 states have (on average 1.207159135123117) internal successors, (21718), 18009 states have internal predecessors, (21718), 416 states have call successors, (416), 381 states have call predecessors, (416), 394 states have return successors, (440), 412 states have call predecessors, (440), 414 states have call successors, (440) [2023-12-22 02:44:38,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18802 states to 18802 states and 22574 transitions. [2023-12-22 02:44:38,647 INFO L78 Accepts]: Start accepts. Automaton has 18802 states and 22574 transitions. Word has length 276 [2023-12-22 02:44:38,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:38,647 INFO L495 AbstractCegarLoop]: Abstraction has 18802 states and 22574 transitions. [2023-12-22 02:44:38,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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 02:44:38,647 INFO L276 IsEmpty]: Start isEmpty. Operand 18802 states and 22574 transitions. [2023-12-22 02:44:38,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2023-12-22 02:44:38,653 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:38,653 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, 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, 1, 1] [2023-12-22 02:44:38,659 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 (65)] Ended with exit code 0 [2023-12-22 02:44:38,857 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 02:44:38,857 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:38,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:38,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1109401599, now seen corresponding path program 1 times [2023-12-22 02:44:38,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:38,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [591837077] [2023-12-22 02:44:38,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:38,858 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:44:38,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:38,859 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 02:44:38,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (66)] Waiting until timeout for monitored process [2023-12-22 02:44:39,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:39,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:44:39,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:39,371 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-12-22 02:44:39,371 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:39,371 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:39,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [591837077] [2023-12-22 02:44:39,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [591837077] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:39,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:39,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:39,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605279925] [2023-12-22 02:44:39,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:39,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:44:39,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:39,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:44:39,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:44:39,373 INFO L87 Difference]: Start difference. First operand 18802 states and 22574 transitions. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 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 02:44:41,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:41,903 INFO L93 Difference]: Finished difference Result 55447 states and 66535 transitions. [2023-12-22 02:44:41,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:44:41,904 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 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 278 [2023-12-22 02:44:41,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:41,965 INFO L225 Difference]: With dead ends: 55447 [2023-12-22 02:44:41,965 INFO L226 Difference]: Without dead ends: 36667 [2023-12-22 02:44:41,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 276 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 02:44:42,000 INFO L413 NwaCegarLoop]: 596 mSDtfsCounter, 692 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 1395 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:42,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 1395 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:44:42,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36667 states. [2023-12-22 02:44:43,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36667 to 36663. [2023-12-22 02:44:43,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36663 states, 35085 states have (on average 1.2052729086504204) internal successors, (42287), 35124 states have internal predecessors, (42287), 805 states have call successors, (805), 737 states have call predecessors, (805), 772 states have return successors, (875), 803 states have call predecessors, (875), 803 states have call successors, (875) [2023-12-22 02:44:43,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36663 states to 36663 states and 43967 transitions. [2023-12-22 02:44:43,629 INFO L78 Accepts]: Start accepts. Automaton has 36663 states and 43967 transitions. Word has length 278 [2023-12-22 02:44:43,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:43,629 INFO L495 AbstractCegarLoop]: Abstraction has 36663 states and 43967 transitions. [2023-12-22 02:44:43,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 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 02:44:43,629 INFO L276 IsEmpty]: Start isEmpty. Operand 36663 states and 43967 transitions. [2023-12-22 02:44:43,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2023-12-22 02:44:43,641 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:43,641 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, 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, 1, 1] [2023-12-22 02:44:43,647 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 02:44:43,844 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 02:44:43,844 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:43,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:43,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1006105405, now seen corresponding path program 1 times [2023-12-22 02:44:43,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:43,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1120284118] [2023-12-22 02:44:43,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:43,845 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:43,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:43,846 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 02:44:43,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:44:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:44,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:44:44,024 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:44,035 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2023-12-22 02:44:44,035 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:44,035 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:44,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1120284118] [2023-12-22 02:44:44,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1120284118] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:44,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:44,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:44:44,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614050826] [2023-12-22 02:44:44,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:44,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:44:44,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:44,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:44:44,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:44:44,036 INFO L87 Difference]: Start difference. First operand 36663 states and 43967 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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 02:44:45,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:45,779 INFO L93 Difference]: Finished difference Result 73289 states and 87870 transitions. [2023-12-22 02:44:45,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:44:45,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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 278 [2023-12-22 02:44:45,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:45,842 INFO L225 Difference]: With dead ends: 73289 [2023-12-22 02:44:45,842 INFO L226 Difference]: Without dead ends: 36648 [2023-12-22 02:44:45,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 276 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 02:44:45,882 INFO L413 NwaCegarLoop]: 479 mSDtfsCounter, 519 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:45,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 479 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:44:45,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36648 states. [2023-12-22 02:44:47,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36648 to 36648. [2023-12-22 02:44:47,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36648 states, 35073 states have (on average 1.2050580218401619) internal successors, (42265), 35111 states have internal predecessors, (42265), 802 states have call successors, (802), 737 states have call predecessors, (802), 772 states have return successors, (872), 800 states have call predecessors, (872), 800 states have call successors, (872) [2023-12-22 02:44:47,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36648 states to 36648 states and 43939 transitions. [2023-12-22 02:44:47,818 INFO L78 Accepts]: Start accepts. Automaton has 36648 states and 43939 transitions. Word has length 278 [2023-12-22 02:44:47,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:47,818 INFO L495 AbstractCegarLoop]: Abstraction has 36648 states and 43939 transitions. [2023-12-22 02:44:47,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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 02:44:47,819 INFO L276 IsEmpty]: Start isEmpty. Operand 36648 states and 43939 transitions. [2023-12-22 02:44:47,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2023-12-22 02:44:47,830 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:47,830 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, 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, 1, 1, 1, 1] [2023-12-22 02:44:47,839 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 (67)] Ended with exit code 0 [2023-12-22 02:44:48,037 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 02:44:48,037 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:48,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:48,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1137811098, now seen corresponding path program 1 times [2023-12-22 02:44:48,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:48,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [751321330] [2023-12-22 02:44:48,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:48,038 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:44:48,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:48,039 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 02:44:48,073 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 (68)] Waiting until timeout for monitored process [2023-12-22 02:44:48,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:48,212 INFO L262 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:44:48,215 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:48,447 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-12-22 02:44:48,447 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:48,447 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:48,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [751321330] [2023-12-22 02:44:48,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [751321330] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:48,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:48,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:44:48,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690397191] [2023-12-22 02:44:48,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:48,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:44:48,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:48,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:44:48,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:44:48,449 INFO L87 Difference]: Start difference. First operand 36648 states and 43939 transitions. Second operand has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 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 02:44:52,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:52,000 INFO L93 Difference]: Finished difference Result 108310 states and 129810 transitions. [2023-12-22 02:44:52,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:44:52,004 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 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 280 [2023-12-22 02:44:52,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:52,129 INFO L225 Difference]: With dead ends: 108310 [2023-12-22 02:44:52,129 INFO L226 Difference]: Without dead ends: 71684 [2023-12-22 02:44:52,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 278 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 02:44:52,162 INFO L413 NwaCegarLoop]: 576 mSDtfsCounter, 689 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 1357 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:52,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 1357 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:44:52,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71684 states. [2023-12-22 02:44:55,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71684 to 71680. [2023-12-22 02:44:55,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71680 states, 68606 states have (on average 1.2036848089088419) internal successors, (82580), 68693 states have internal predecessors, (82580), 1553 states have call successors, (1553), 1425 states have call predecessors, (1553), 1520 states have return successors, (1731), 1563 states have call predecessors, (1731), 1551 states have call successors, (1731) [2023-12-22 02:44:55,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71680 states to 71680 states and 85864 transitions. [2023-12-22 02:44:55,643 INFO L78 Accepts]: Start accepts. Automaton has 71680 states and 85864 transitions. Word has length 280 [2023-12-22 02:44:55,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:44:55,643 INFO L495 AbstractCegarLoop]: Abstraction has 71680 states and 85864 transitions. [2023-12-22 02:44:55,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 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 02:44:55,643 INFO L276 IsEmpty]: Start isEmpty. Operand 71680 states and 85864 transitions. [2023-12-22 02:44:55,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2023-12-22 02:44:55,679 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:44:55,680 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, 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, 1, 1, 1, 1] [2023-12-22 02:44:55,699 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 02:44:55,899 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 02:44:55,901 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:44:55,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:44:55,902 INFO L85 PathProgramCache]: Analyzing trace with hash -2064370916, now seen corresponding path program 1 times [2023-12-22 02:44:55,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:44:55,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1696464913] [2023-12-22 02:44:55,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:44:55,902 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 02:44:55,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:44:55,904 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 02:44:55,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -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 02:44:56,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:44:56,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:44:56,093 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:44:56,107 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2023-12-22 02:44:56,107 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:44:56,107 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:44:56,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1696464913] [2023-12-22 02:44:56,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1696464913] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:44:56,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:44:56,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:44:56,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170568150] [2023-12-22 02:44:56,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:44:56,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:44:56,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:44:56,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:44:56,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:44:56,108 INFO L87 Difference]: Start difference. First operand 71680 states and 85864 transitions. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 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 02:44:59,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:44:59,489 INFO L93 Difference]: Finished difference Result 143324 states and 171667 transitions. [2023-12-22 02:44:59,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:44:59,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 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 280 [2023-12-22 02:44:59,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:44:59,606 INFO L225 Difference]: With dead ends: 143324 [2023-12-22 02:44:59,607 INFO L226 Difference]: Without dead ends: 71666 [2023-12-22 02:44:59,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 278 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 02:44:59,653 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 517 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 02:44:59,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 478 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 02:44:59,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71666 states. [2023-12-22 02:45:03,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71666 to 71666. [2023-12-22 02:45:03,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71666 states, 68595 states have (on average 1.203586267220643) internal successors, (82560), 68681 states have internal predecessors, (82560), 1550 states have call successors, (1550), 1425 states have call predecessors, (1550), 1520 states have return successors, (1728), 1560 states have call predecessors, (1728), 1548 states have call successors, (1728) [2023-12-22 02:45:03,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71666 states to 71666 states and 85838 transitions. [2023-12-22 02:45:03,313 INFO L78 Accepts]: Start accepts. Automaton has 71666 states and 85838 transitions. Word has length 280 [2023-12-22 02:45:03,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:45:03,313 INFO L495 AbstractCegarLoop]: Abstraction has 71666 states and 85838 transitions. [2023-12-22 02:45:03,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 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 02:45:03,314 INFO L276 IsEmpty]: Start isEmpty. Operand 71666 states and 85838 transitions. [2023-12-22 02:45:03,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2023-12-22 02:45:03,338 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:45:03,339 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, 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, 1, 1, 1, 1, 1, 1] [2023-12-22 02:45:03,345 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 (69)] Forceful destruction successful, exit code 0 [2023-12-22 02:45:03,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.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 02:45:03,545 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:45:03,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:45:03,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1692731969, now seen corresponding path program 1 times [2023-12-22 02:45:03,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:45:03,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1945348688] [2023-12-22 02:45:03,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:45:03,546 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 02:45:03,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:45:03,547 INFO L229 MonitoredProcess]: Starting monitored process 70 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.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 02:45:03,549 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 (70)] Waiting until timeout for monitored process [2023-12-22 02:45:03,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:45:03,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:45:03,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:45:03,959 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-12-22 02:45:03,960 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:45:03,960 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:45:03,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1945348688] [2023-12-22 02:45:03,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1945348688] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:45:03,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:45:03,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:45:03,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831686013] [2023-12-22 02:45:03,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:45:03,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:45:03,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:45:03,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:45:03,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:45:03,961 INFO L87 Difference]: Start difference. First operand 71666 states and 85838 transitions. Second operand has 4 states, 4 states have (on average 48.5) internal successors, (194), 4 states have internal predecessors, (194), 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 02:45:10,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:45:10,981 INFO L93 Difference]: Finished difference Result 211755 states and 253587 transitions. [2023-12-22 02:45:10,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-22 02:45:10,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.5) internal successors, (194), 4 states have internal predecessors, (194), 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 282 [2023-12-22 02:45:10,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:45:11,249 INFO L225 Difference]: With dead ends: 211755 [2023-12-22 02:45:11,249 INFO L226 Difference]: Without dead ends: 140111 [2023-12-22 02:45:11,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 280 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 02:45:11,317 INFO L413 NwaCegarLoop]: 563 mSDtfsCounter, 684 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 1326 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-22 02:45:11,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 1326 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-22 02:45:11,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140111 states. [2023-12-22 02:45:17,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140111 to 140107. [2023-12-22 02:45:18,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140107 states, 134113 states have (on average 1.2026947424932706) internal successors, (161297), 134308 states have internal predecessors, (161297), 3001 states have call successors, (3001), 2753 states have call predecessors, (3001), 2992 states have return successors, (3419), 3047 states have call predecessors, (3419), 2999 states have call successors, (3419) [2023-12-22 02:45:18,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140107 states to 140107 states and 167717 transitions. [2023-12-22 02:45:18,231 INFO L78 Accepts]: Start accepts. Automaton has 140107 states and 167717 transitions. Word has length 282 [2023-12-22 02:45:18,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:45:18,231 INFO L495 AbstractCegarLoop]: Abstraction has 140107 states and 167717 transitions. [2023-12-22 02:45:18,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.5) internal successors, (194), 4 states have internal predecessors, (194), 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 02:45:18,232 INFO L276 IsEmpty]: Start isEmpty. Operand 140107 states and 167717 transitions. [2023-12-22 02:45:18,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2023-12-22 02:45:18,278 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:45:18,278 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, 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, 1, 1, 1, 1, 1, 1] [2023-12-22 02:45:18,284 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 (70)] Ended with exit code 0 [2023-12-22 02:45:18,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.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 02:45:18,484 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:45:18,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:45:18,485 INFO L85 PathProgramCache]: Analyzing trace with hash 2118840701, now seen corresponding path program 1 times [2023-12-22 02:45:18,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:45:18,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [898772256] [2023-12-22 02:45:18,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:45:18,485 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 02:45:18,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:45:18,486 INFO L229 MonitoredProcess]: Starting monitored process 71 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.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 02:45:18,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (71)] Waiting until timeout for monitored process [2023-12-22 02:45:18,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:45:18,654 INFO L262 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 02:45:18,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:45:18,669 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2023-12-22 02:45:18,669 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:45:18,669 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:45:18,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [898772256] [2023-12-22 02:45:18,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [898772256] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:45:18,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:45:18,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 02:45:18,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068704311] [2023-12-22 02:45:18,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:45:18,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 02:45:18,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:45:18,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 02:45:18,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 02:45:18,670 INFO L87 Difference]: Start difference. First operand 140107 states and 167717 transitions. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 02:45:25,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 02:45:25,284 INFO L93 Difference]: Finished difference Result 280179 states and 335376 transitions. [2023-12-22 02:45:25,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 02:45:25,285 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 282 [2023-12-22 02:45:25,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 02:45:25,631 INFO L225 Difference]: With dead ends: 280179 [2023-12-22 02:45:25,631 INFO L226 Difference]: Without dead ends: 140094 [2023-12-22 02:45:25,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 280 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 02:45:25,745 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 515 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 02:45:25,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 477 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 02:45:25,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140094 states. [2023-12-22 02:45:32,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140094 to 140094. [2023-12-22 02:45:32,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140094 states, 134103 states have (on average 1.2026502017106253) internal successors, (161279), 134297 states have internal predecessors, (161279), 2998 states have call successors, (2998), 2753 states have call predecessors, (2998), 2992 states have return successors, (3416), 3044 states have call predecessors, (3416), 2996 states have call successors, (3416) [2023-12-22 02:45:32,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140094 states to 140094 states and 167693 transitions. [2023-12-22 02:45:32,771 INFO L78 Accepts]: Start accepts. Automaton has 140094 states and 167693 transitions. Word has length 282 [2023-12-22 02:45:32,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 02:45:32,771 INFO L495 AbstractCegarLoop]: Abstraction has 140094 states and 167693 transitions. [2023-12-22 02:45:32,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 02:45:32,771 INFO L276 IsEmpty]: Start isEmpty. Operand 140094 states and 167693 transitions. [2023-12-22 02:45:32,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2023-12-22 02:45:32,814 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 02:45:32,814 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 02:45:32,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (71)] Forceful destruction successful, exit code 0 [2023-12-22 02:45:33,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.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 02:45:33,021 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 02:45:33,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 02:45:33,021 INFO L85 PathProgramCache]: Analyzing trace with hash 54096666, now seen corresponding path program 1 times [2023-12-22 02:45:33,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 02:45:33,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1792588762] [2023-12-22 02:45:33,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 02:45:33,022 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.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 02:45:33,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 02:45:33,023 INFO L229 MonitoredProcess]: Starting monitored process 72 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.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 02:45:33,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (72)] Waiting until timeout for monitored process [2023-12-22 02:45:33,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 02:45:33,206 INFO L262 TraceCheckSpWp]: Trace formula consists of 656 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 02:45:33,209 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 02:45:33,456 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-12-22 02:45:33,456 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 02:45:33,456 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 02:45:33,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1792588762] [2023-12-22 02:45:33,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1792588762] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 02:45:33,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 02:45:33,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 02:45:33,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693134388] [2023-12-22 02:45:33,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 02:45:33,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 02:45:33,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 02:45:33,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 02:45:33,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 02:45:33,458 INFO L87 Difference]: Start difference. First operand 140094 states and 167693 transitions. Second operand has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 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)